All Components of the plant(leaf,stem,root) contains a waxy cuticle layer. (D)
All major aerial parts of the plant, such as leaves, stems, and even flowers, have a cuticle layer. This is a waxy, waterproof layer that helps reduce water loss through transpiration. The cuticle layer also protects the plant from harmful environmental conditions, such as excessive light, high temperatures, and disease-causing pathogens.
In addition, the cuticle layer also helps regulate the exchange of gases between the plant and the environment. The cuticle layer is present in all aerial parts of the plant, although its thickness and composition may vary depending on the species and the specific part of the plant.
The root of the plant also contains a cuticle layer, although it is typically thinner than in aerial parts, due to the reduced exposure to environmental stressors and the need for efficient gas exchange with the soil.
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nocturnal animals are important pollinators. what niche do they specifically fill?
Nocturnal animals are important pollinators. The niche they specifically fill is that they pollinate flowers that only bloom at night.
Nocturnal animals are animals that are active at night and usually rest during the day. These animals have very good adaptations to their eyesight so that they are able to move at night. Some examples of nocturnal animals are bats, koalas, and owls.
Niche is the functional role of an animal in an organism. One of the nocturnal animals that has a pollination niche is the bat. Bats help pollinate some flowers that grow in the tropics and deserts of Africa and Asia. They transfer pollen grains from one flower to the stigma of another.
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Which best describes the base of the food web in the deep ocean habitat?
A.methane-consuming bacteria
B.oxygen-consuming bacteria
C.saline-consuming bacteria
D.sulfur-consuming bacteria
Chemioautotroph organisms refer to bacteria that act as producers because they can produce organic compounds, from reduced inorganic compounds and use the energy released from oxidation. D. sulfur-consuming bacteria
What chemoautotrophic organisms?
Chemioautotroph organisms are those producers from the trophic web that produce organic matter in the absence of light, using reduced inorganic compounds and energy from oxidation. Among these compounds, we can find sulfur.
The capability of these bacteria is known as chemosynthesis and might occur in different environments, among which we can mention the ocean.
Option D is correct. sulfur-consuming bacteria
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question in a forest, deer eat plants for survival. how would an increase in the deer population affect the plant life of an ecosystem? responses only the number of plants would increase. only the number of plants would increase. only the variety of plants would decrease. only the variety of plants would decrease. the number and variety of plants would increase. the number and variety of plants would increase. the number and variety of plants would decrease.
The expansion in the deer populace would probably prompt a lessening in the number and assortment of plants in the environment.
As the deer eat plants for endurance, a bigger deer populace would prompt more plant utilization and a more noteworthy tension on the accessible plant assets.
This could bring about the over-brushing of specific plant species, prompting their decrease in numbers or even elimination.
Furthermore, the modified plant organization could likewise affect different species in the environment that rely upon those plants for food and territory.
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to what extent do biological factors influence cognitive development
Biological factors play a significant role in shaping the cognitive development of individuals. These factors refer to the genetic, neurological and physiological characteristics of an individual that impact their mental and intellectual abilities. In this context, this article will discuss the extent to which biological factors influence cognitive development.
The first biological factor that affects cognitive development is genetics. Genes determine the basic structure of the brain and its functioning, including the number of neurons and the way they are connected. This genetic blueprint affects the speed of information processing, the ability to learn, and the strength of memory. For example, individuals with a genetic predisposition to dyslexia may have difficulties in reading, while those with a strong genetic basis for mathematical abilities may excel in arithmetic.
Another biological factor that influences cognitive development is neurological development. The brain undergoes several stages of development and maturation, beginning at birth and continuing into adulthood. During this process, the brain develops new connections, strengthens existing ones, and prunes unused connections. This process is critical to cognitive development as it enables the development of new skills, such as the ability to understand language, perform complex movements, and solve problems.
Furthermore, nutrition also plays a crucial role in cognitive development. A balanced and nutritious diet is essential for the proper functioning of the brain and for the development of mental abilities. A diet that is deficient in essential vitamins and minerals can lead to malnutrition, which in turn can lead to developmental delays, learning difficulties, and behavioral problems.
Finally, the environment in which a child grows up can also influence their cognitive development. The environment can impact the development of cognitive skills by providing stimulation, opportunities for exploration and learning, and exposure to diverse experiences. For example, children who are exposed to a stimulating and supportive environment are more likely to develop strong cognitive abilities and a love of learning.
In conclusion, biological factors, including genetics, neurological development, nutrition, and the environment, significantly impact cognitive development. These factors interact with each other and shape the intellectual and mental abilities of individuals. By understanding the extent to which biological factors influence cognitive development, we can take steps to support and enhance the development of children and young adults.
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does adding fertilizer affect the productivity of tomato plants? to answer this question, a gardener plants 24 similar tomato plants in identical pots in his greenhouse. he will add fertilizer to the soil in half of the pots. at the end of three months he will record the total weight of tomatoes produced on each plant. identify the explanatory and response variables, experimental units, and treatments.
In this experiment:
Explanatory variable: Whether fertilizer was added to the soil or not
Response variable: Total weight of tomatoes produced on each plant
Experimental units: 24 tomato plants, planted in identical pots in the greenhouse
Treatments: Adding fertilizer to the soil and not adding fertilizer to the soil.
The gardener is doing an experiment to determine whether fertilizer has any impact on the response variable, which is the total weight of tomatoes produced on each plant. The 24 tomato plants that make up the experimental units are being subjected to the addition of fertilizer and its absence as treatments. The gardener will track the total weight of tomatoes produced on each plant after three months and compare the results between the two groups to see if fertilizer addition affects tomato plant productivity.
Thus experiment help to test hypothesis and make us find relevant results.
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the parts of a skeletal muscle, from smallest to largest, are
From smallest to largest, the parts of a skeletal muscle are Myofilament, sarcomere, myofibril, muscle fiber, fascicle, and muscle.
As part of the somatic musculature, it is the most abundant muscle found in vertebrates. It is responsible for the individual's posture and proportions motion to the digits and extremities, among other functions. Additionally, it participates in phonation, mastication, deglutition, eye movements, and respiration.
The skeletal muscle's composition:
Myofilaments: Miosine and actinides Sarcomere: It is the contractile apparatus's functional unit. comprises the H zone, the A and I bands, and the Z band.Myofibrilles: The functional units are in them.Muscle strands: Endomysium covers the area.Fascicle: Perimysium covers a group of fibers.Muscle: Epimysium encircles a group of fascicles.Know more about Myofilaments here: https://brainly.com/question/30114345
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Antoine drew a diagram to compare two kinds of evidence that support the theory of evolution.
Which label belongs in the area marked X?
no longer used by species
links different species to a common ancestor
evidence of adaptations to similar environments
part of comparative anatomy studies
The label that belongs in the area marked X is part of comparative anatomy studies. The correct option is the D.
What is comparative anatomy?Comparative anatomy is the study of how various animal species' bodies differ from one another in order to comprehend the adaptive changes that have occurred throughout their evolution from similar ancestors.
The process of speciation occurs when an ancestor species that can no longer interbreed divides into two or more daughter species that are genetically distinct from one another.
Therefore, the correct option is the D. part of comparative anatomy studies.
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what type of bond is broken when mrna separates from dna
The bond that is broken when mRNA separates from DNA is a hydrogen bond.
In molecular biology, DNA and RNA are two important macromolecules that play a crucial role in the storage and expression of genetic information.
DNA is the genetic material of an organism, which stores the instructions needed to build and maintain its cells. RNA, on the other hand, is involved in the transfer of these instructions from DNA to ribosomes, the cellular structures where proteins are synthesized.
One important process that occurs during gene expression is the transcription of DNA into RNA. During transcription, a specific segment of DNA is copied (or transcribed) into a complementary RNA molecule called messenger RNA (mRNA). The mRNA molecule then leaves the nucleus and travels to the ribosome, where it serves as a template for protein synthesis.
The bond between the mRNA and DNA is broken by the action of an enzyme called RNA polymerase. RNA polymerase recognizes the start site of a gene on the DNA and then adds nucleotides, one by one, to form a complementary RNA molecule.
As the RNA polymerase moves along the DNA, it breaks the hydrogen bonds between the nitrogenous bases of the DNA and RNA, allowing the mRNA to separate from the DNA. The mRNA molecule then travels out of the nucleus and into the cytoplasm, where it can be translated into a protein.
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determine whether each item is a formed element or part of the plasma.
The items that are formed element or part of the plasma:
Formed elements:
PlateletsWhite Blood CellsEosinophilsMonocytesRed Blood CellsNeutrophilsBasophilsLymphocytesPlasma:
WaterNutrientsHormonesGasesVitaminsProteinsElectrolytesPlаsmа is the wаtery fluid portion of blood (90 percent wаter) in which the corpusculаr elements аre suspended. It trаnsports nutrients аs well аs wаstes throughout the body. Vаrious compounds, including proteins, electrolytes, cаrbohydrаtes, minerаls, аnd fаts, аre dissolved in it.
Formed Elements are cells аnd cell frаgments suspended in the plаsmа. The three clаsses of formed elements аre the erythrocytes (red blood cells), leukocytes (white blood cells), аnd the thrombocytes (plаtelets).
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When CODIS is attempting to match DNA samples to DNA profiles in its database, how many different regions in the nuclear DNA is it attempting to
match?
A. 10
B.
13
C. 16
D.
20
Answer:When CODIS (Combined DNA Index System) is attempting to match DNA samples to DNA profiles in its database, it is attempting to match 13 different regions in the nuclear DNA (Option B). These regions, also known as loci, contain genetic markers that are unique to an individual, and by matching the markers at these loci between a sample and a profile in the database, CODIS can determine if there is a match between the two. The use of multiple loci helps to increase the accuracy and reliability of DNA matches, as the chance of two individuals having the same DNA profile at all 13 loci is very low.
Explanation:
When CODIS (Combined DNA Index System) is attempting to match DNA samples to DNA profiles in its database, it is attempting to match 13 different regions in the nuclear DNA (Option B). These regions, also known as loci, contain genetic markers that are unique to an individual, and by matching the markers at these loci between a sample and a profile in the database, CODIS can determine if there is a match between the two. The use of multiple loci helps to increase the accuracy and reliability of DNA matches, as the chance of two individuals having the same DNA profile at all 13 loci is very low.
7. Pilihan ganda30 detik1 ptQ. Fertilizers are classified as which kind of water pollutant?Pilihan jawabana. organic chemicalsb. inorganic chemicalsc. heavy metalsd. physical agents
Fertilizers are classified as Organic kind of the water pollutants.
Any substance of natural or synthetic origin that is applied to soil or plant tissues to provide plant nutrients is referred to as a fertiliser (American English) or fertiliser (British English; note spelling changes). It's possible to distinguish fertilizers from liming agents or other non-nutrient soil additives.
There are numerous natural and man-made sources of fertilizer. With the exception of the sporadic inclusion of supplements like rock flour for micronutrients, fertilization for the majority of modern agricultural techniques concentrates on the three basic macronutrients of nitrogen (N), phosphorus (P), and potassium (K). Farmers can use a range of methods to apply these fertilisers, including dry, pelletized, or liquid application processes, as well as heavy machinery or manual tools.
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What are the three light-independent reactions?
fixation, reduction, and regeneration are the three light-independent reactions .
What are reactions ?
A chemical reaction is a process in which one or more substances are transformed into new substances with different chemical properties. Chemical reactions are a result of changes in the arrangement of atoms and molecules, and involve the breaking and formation of chemical bonds. The rate of a chemical reaction is determined by the chemical properties of the reactants and the conditions in which the reaction takes place.
There are many types of chemical reactions, including combination reactions, decomposition reactions, displacement reactions, and redox reactions. In a combination reaction, two or more substances combine to form a new compound, while in a decomposition reaction, a single compound breaks down into simpler substances. A displacement reaction involves the exchange of ions between two substances, while a redox reaction involves a transfer of electrons between species.
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How is a birds wing similar to human arm in form?
Answer:
Although both the wing and arm are morphologically different and perform different functions but anatomically they resemble each other. They show similarities in the pattern of bones of forelimbs. They have the same set of bones i.e. humerus, radius, ulna, and phalanges.
Explanation:
Answer:
They do have quiet a few differences but some similarities to.
They show similarities in the pattern of bones of forelimbs. They have the same set of bones; humerus, radius, ulna, and phalanges.
Explanation:
Hope it helps! =D
Drag each tile to the correct location. Sort the ituation baed on which part of the autonomic nervou ytem i at work. Ro feel nervou becaue
he miplaced hi important
work document. Dory ee a bear while hiking
in the wood, and her heart
rate increae. Maya feel her heart rate
low down after trenuou
exerciing. Rodrigo’ breathing increae
when he hear a cary ound. Sofia’ mucle relax when
he find her miing cell
phone
Lia feel calm after yoga cla
The situations based on part of the autonomic nervous system is at work:
Sympathetic part:
Ross feels nervous because he misplaced his important work documents.Dory sees a bear while hiking in the woods, and her heart rate increases.Rodrigo’s breathing increases when he hears a scary sound.Parasympathetic part:
Maya feels her heart rate slow down after strenuous exercising.Sofia’s muscles relax when she finds her missing cell phone.Lisa feels calm after yoga class.The аutonomic nervous system is а component of the peripherаl nervous system thаt regulаtes involuntаry physiologic processes including heаrt rаte, blood pressure, respirаtion, digestion, аnd sexuаl аrousаl. It contаins three аnаtomicаlly distinct divisions: sympаthetic, pаrаsympаthetic, аnd enteric.
The sympаthetic nervous system (SNS) аnd the pаrаsympаthetic nervous system (PNS) contаin both аfferent аnd efferent fibers thаt provide sensory input аnd motor output, respectively, to the centrаl nervous system (CNS). Generаlly, the SNS аnd PNS motor pаthwаys consist of а two-neuron series: а pregаnglionic neuron with а cell body in the CNS аnd а postgаnglionic neuron with а cell body in the periphery thаt innervаtes tаrget tissues.
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Help! why is it important for dna to unwind before replication?
A. to allow proteins to check for mistakes in the dna strands
B. to expose bases so they can be paired with new bases
C. to prevent the new dna from accidentally sticking together to prevent the new , dna from accidentally sticking together
D. to improve flexibility in the dna strands phosphate backbone
The answer is
B. To expose bases so they can be paired with new bases.
what part of the cns is not a integration center for the pathway of sound coming from the cochlear nerve?
It is important to note that the brainstem and spinal cord, which make up the lower part of the CNS, do not serve as integration centers for the pathway of sound. Instead, they are involved in other functions, such as controlling basic reflexes and movements.
The Central Nervous System (CNS) is composed of the brain and spinal cord and plays a crucial role in processing and integrating sensory information from the body. Sound information from the cochlear nerve travels to the brain through various CNS integration centers. However, not all parts of the CNS serve as integration centers for the pathway of sound.
The cochlear nerve, also known as the auditory nerve, is responsible for carrying sound information from the inner ear to the brain. This information first travels to the cochlear nucleus in the brainstem, which serves as the first integration center for the pathway of sound. From there, the information is transmitted to other areas of the brainstem, including the superior olivary complex and the lateral lemniscus. These structures also play a role in processing sound information and serve as intermediate integration centers.
Finally, the information reaches the auditory cortex, which is located in the temporal lobe of the brain. This is the primary integration center for the pathway of sound and is responsible for perceiving and interpreting the information.
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classify whether each given factor would increase or decrease heart rate?
The stroke volume would increment when the pulse dials back in light of the fact that the time delay considers more blood volume to top off the left ventricle before the next heartbeat.
As HR increments from 120 to 160 bpm, the cardiovascular result stays stable, since the expansion in rate is counterbalanced by diminishing ventricular occupying time and, subsequently, SV. As keeps on transcending 160 bpm, the cardiovascular result really diminishes in light of the fact that SV falls quicker than the expansion in HR.
The three essential variables to consider are preload, or the stretch on the ventricles preceding constriction; the contractility, or the power or strength of the actual compression; and afterload, the power the ventricles should produce to siphon blood against the obstruction in the vessels.
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All of the following are true of all living organisms EXCEPT that they
A. are made of cells.
B. can reproduce themselves.
C. can grow.
D. possess either DNA or RNA.
The correct option D. possess either DNA or RNA. EXCEPT this, all are true about the living organisms.
Explain the term living organisms?The ability to engage in life activities including movement, respiration, growth, reactivity to environmental cues, and reproduction can help distinguish live objects from non-living ones.
Even while this way of thinking about life has some drawbacks and can result in the aforementioned alternate ideas, it may be appropriate for this age. For instance, because pupils are unable to perceive plant movement, they may not believe plants to be living things.Considering whether something is alive or not is still difficult because not all biological processes end at the exact time. Human hair and fingernails, for instance, keep growing even after a person passes away.The true statement about the living organisms are-
A. Consist of cells.B. has the ability to procreate.C. can develop.D. DNA and RNA are presentTo know more about the living organisms, here
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What are the three processes of genetic transfer in Bacteria?
In nature, DNA is transferred using three "traditional" processes: bacterial conjugation, natural transformation, and transduction.
Describe the three process of genetic transfer in bacteria?A bacterium absorbs DNA from its surroundings during transformation, frequently DNA that has been excreted by other bacteria. Scientists could introduce the DNA . If the DNA is in the shape of a plasmid then a circular piece of DNA, can be replicated in the recipient cell and is passed on to the offspring. Imagine that a hazardous (disease-causing) species of bacterium transfers its DNA for a toxin gene to a harmless bacterium. The receiving cell may also develop harmful properties if the additional DNA is incorporated into its own chromosome (which can occur through a process known as homologous recombination).
In transduction short segments of chromosomal DNA are "accidentally" transferred from one bacterium to another during transduction by viruses that infect bacteria.
Yes, viruses can infect even bacteria. Bacteriophages are the names given to the viruses that attack bacteria. The biological equivalent of pirates, bacteriophages commander a cell's resources and use them to produce new bacteriophages.
In conjugation sometimes, as the new bacteriophage is being created, bits of DNA from the host cell get caught inside. One of these "defective" bacteriophages transfers the DNA when it infects a cell. Thus, DNA is transferred from one bacterium to another during the process of conjugation. When the DNA is transferred between cells after the donor cell uses a feature known as a pilus to get itself near to the recipient cell. This DNA actually takes the shape of a plasmid. Because they include a section of DNA termed as the reproductive factor, donor cells usually function as donors (or F factor). The proteins that make up the sex pilus are encoded by the section of DNA. Additionally, it has a unique location where DNA transfer during conjugation starts.
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What organ system provides support and levers on which the muscular system acts?
The organ system that provides support and levers on which the muscular system acts is called the skeletal system.
The human body has several organ systems, each with specific functions that contribute to the overall health and homeostasis of the body. The main organ systems are:
1. Skeletal System: provides support, protection, and movement.
2. Muscular System: responsible for movement and maintenance of posture.
3. Nervous System: controls and coordinates body functions through electrical and chemical signaling.
4. Endocrine System: regulates body functions by producing and releasing hormones.
5. Cardiovascular System: circulates blood and transports oxygen, nutrients, and hormones to cells.
6. Lymphatic System: helps maintain fluid balance, defends against disease, and transports waste products.
7. Respiratory System: brings oxygen into the body and removes carbon dioxide.
8. Digestive System: processes food and eliminates waste.
9. Urinary System: filters and eliminates waste from the blood.
10. Reproductive System: produces and transports gametes for reproduction.
The bones of the skeleton serve as anchors for muscles, allowing them to generate force and produce movement. The skeletal system also provides stability and protects vital organs, such as the brain, heart, and lungs. The bones themselves also store minerals, such as calcium and phosphorus, which are important for maintaining healthy bones and overall health.
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indicate in which part of the phloem tissue you would expect to see the highest concentration of sucrose? (note that glucose is converted to sucrose before it enters the phloem).
Up to this point, sucrose diffuses without the need for energy because its concentration is higher in the palisade cells, where it is generated, than in the tissues surrounding the phloem.
The pressure flow model for phloem transport is the most widely recognised theory to explain the transfer of sugars in phloem. This theory explains a number of data, including the fact that phloem is under pressure, that translocation stops if the phloem tissue is dead, that it occurs concurrently in both directions, and that it is prevented by substances that stop the generation of ATP in the sugar source. According to the pressure flow model, water is drawn into the phloem from the nearby xylem when the source has a high concentration of sugar since this results in a low solute potential (s).
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1. d iodine 2. e lipid 3. b iron 4. c type of monosaccharides 5. protoplasm aposed of carbon, hydrogen and oxygen with no ratio. b.0.007% of body weight. found mostly in the blood since it facilitates transportation of oxygen. c.1. glucose (blood) 2. fructose (fruit) 3. galactose (milk) 4. deoxyribose (dna) 5. ribose (rna) d..0002% of body weight. found in certain hormones in thyroid gland. eplex of organic and inorganic substances and water.
Hemoglobin, a type of protein present in RBC, serves as the main carrier of oxygen throughout the body.
Hemoglobin, a protein found in red blood cells, carries oxygen to your body's organs and tissues and returns carbon dioxide from those tissues to your lungs. If a haemoglobin test reveals that your haemoglobin level is lower than normal, you have a low red blood cell count (anemia). Four different folded peptide chains that enclose a heme group in a hydrophobic or water-repellent pocket make up the haemoglobin molecule. The heme group is composed of a core iron atom complexed with four nitrogen atoms. Reversible oxygen binding to the heme unit is made possible by the oxygenation process.
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which of the following presents a correct interpretation of the changes in chromosome number depicted in figure 1 ?
Two chromatids connected by a centromere are present when chromosomes enter metaphase. The chromatids separate during anaphase and each one develops into a chromosome.
A chromosome is a biological structure that houses DNA-based genetic material. Numerous genes, which are DNA sequences that code for instructions necessary for the development and operation of an organism, are found in chromosomes, which are ordered packets of DNA. Humans have 46 chromosomes in their somatic cells, which is a number that varies depending on the species. Given that changes in chromosomal number can result in genetic abnormalities and diseases, chromosome number can be a useful indicator of an organism's genetic health. Changes in chromosome number can lead to novel features and adaptations, hence chromosome number can potentially play a part in evolution.
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thermoreceptors in the hypothalamus sense the temperature of the blood. when blood temperature begins to decrease, the hypothalamus releases trh, which stimulates the release of tsh from the anterior pituitary gland. tsh stimulates the thyroid gland to release thyroid hormone (th). th stimulates an increase in body temperature, which causes the hypothalamus to decrease the release of trh. in this reflex pathway, what is the response?
Increased body temperature is the response in a reflex pathway which causes hypothalamus to decrease the release of TRH.
The hypothalamus is the body's thermostat because it controls and maintains body temperature by reacting to signals or stimuli from outside the body, keeping it within one to two degrees of 98.6 degrees. The term "neuroendocrine response" refers to the reaction of hormones and thermoreceptors. It is described as a complicated response when the hypothalamus involves two or more hormones and multiple processes.
The temperature of the blood is detected by thermoreceptors in the hypothalamus. When the blood temperature starts to drop, the hypothalamus releases TRH, which prompts the anterior pituitary gland to release TSH. The thyroid gland is stimulated by TSH to release thyroid hormone (TH). The hypothalamus reduces the release of TRH when TH drives an increase in body temperature.
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HELP pls will mark you the brainliest
Answer: Most likely Option
Explanation: Phytoplankton are the main reason because they play a huge role in the world's carbon cycle.
Answer:
Water absorbs carbon directly from the atmosphere by diffusion.
Explanation:
There are two ways in which large bodies of water absorb carbon dioxide. The first way utilizes diffusion, which is the method in which the net movement would move from high concentration to lower concentration. In this case, the atmospheric wind relinquishes carbon dioxide to water when they touch. The turbulence of waves then diffuses the concentration of CO2 and spreads it out more evenly.
The second way utilizes photosynthesis and the algae family tree (which includes algae and planktons), which converts, just like trees, carbon dioxide into oxygen and sugar through photosynthesis.
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Components of e. coli e. coli cells are rod-shaped, about 2 m long and 0.8 m in diameter. the volume of a cylinder is r 2h, where h is the height of the cylinder ?(a) E. coli has a protective cell envelope 10 nm thick. What percentage of the total volume of thebacterium does the cell envelope occupy?(b) E. coli is capable of growing and multiplying rapidly because it contains some 15,000 sphericalribosomes (diameter 18 nm), which carry out protein synthesis. What percentage of the cellvolume do the ribosomes occupy?
In E.coli the percentage of the total volume that the envelope will occupy is 10% and the percentage of the cell volume that the ribosomes will occupy will be 5%.
To calculate the percentage of total volume of the bacterium that the cell wall will occupy, we first calculate the proportion of the cell volume which will not include the envelope. It is given to us that
r = 0.4μm - 0.01 μm and h= 2μm - 2 (0.01μm) divided by the total volume.
So,
The volume without the envelope = π (0.39μm)² × (1.98μm)
The volume with envelope = π (0.4μm)² × (2μm)
So the percentage of cell which does not include the envelope,
= π (0.39μm)² × (1.98μm) × 100 / π (0.4μm)² × (2μm) = 90%
So, the percentage of cell which includes the envelope,
= 100 - 90 = 10%
To calculate the cell volume occupies by the ribosomes,
The volume of all the ribosomes, with each ribosome having a radius of 9 nm
= 15000 × (4/3)(9×10⁻³μm)³
The volume of the cell = π (0.4μm)² × (2μm)
So, the percentage occupied by the ribosomes,
= 15000 × (4/3)(9×10⁻³μm)³ × 100 / π (0.4μm)² × (2μm)
= 5%
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11. To which organism(s) on the tree is the coelacanth most closely related?
a. Frog
b. Lungfish
c. Cichlid and shark equally
d. Frog and lungfish equally
Q1: A green plant is kept in a brightly
lighted area for 48 hours. What will
most likely occur if the light intensity is
reduced by half during the next 48
hours?
A. Photosynthesis will stop completely.
B. The rate at which oxygen is released
from the plant will decrease.
C. The rate at which nitrogen is used
by the plant will increase.
D. Glucose production inside each plant
will increase.
Q3: At point C in the graph below,
what factor is most likely limiting
the rate of photosynthesis?
A. Light
intensity
B. 60 C
Temperature
C. Glucose
availability
D. Carbon
Dioxide concentration
rate of photosynthesis
A
light intensity
Q2: What could explain the
difference between line X and line Y in
the graph below?
rate of
photosynthesis
Carbon dioxide
A. Line X represents a plant at lower
concentrations of oxygen
B. Line Y represents a plant at higher
concentrations of carbon dioxide
C. Line Y represents a plant at higher light
intensity
D. Line X represents a plant with more
glucose
A. A
B. B
C. C
D.
D
Q4: At which point is light intensity
the limiting factor for photosynthesis?
rate of photosynthesis
X
A
B
light intensity
D
1. B. The rate at which oxygen is release from the plant will decrease.
2. C. Line Y represents a plant at higher light
intensity
3. Light
intensity
4. A
What is photosynthesis?Photosynthesis is the process by which green plants and some other organisms transform light energy into chemical energy stored in organic compounds, mainly glucose, through the reaction of carbon dioxide and water, using chlorophyll and other pigments in chloroplasts.
We can see that the questions that we have deal with the graphs that show the factors that are limiting in the process of photosynthesis.
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How are latitude and longitude similar to a coordinate plane?
Answer:
Latitude and longitude form a graph on a surface.
Explanation:
they allow for the use of an x and y axis, similar to that of a coordinate plane, so you can find specific coordinates among the latitude and longitude (for example, on the face of an earth globe or a map).
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Which of the following is not a characteristic of an animal plasma membrane?
A. Separates the internal environment of the cell from the external environment
B. Helps the cell maintain homeostasis
C. Responsible for the synthesis of ATP
D. Helps to maintain the cells shape
E. Regulates the passage of molecules into and out of the cell
Responsible for the synthesis of ATP is not a characteristic of an animal plasma membrane.
What is membrane?A membrane is a thin, selectively permeable material that acts as a barrier between two different environments. It is composed of a thin layer of molecules that allow some substances to pass through and block others. Membranes are found in all living things and are responsible for many essential life processes. In cells, membranes allow nutrients to enter and waste products to be expelled. They also act as a filter for proteins and other molecules. Outside of cells, membranes are used in filtration, separation, and purification processes in industrial settings. In addition, membranes have been used to create artificial organs and to aid in drug delivery. The structure of a membrane is made up of a phospholipid bilayer, which is composed of two layers of lipid molecules with a hydrophilic (water-loving) head and two hydrophobic (water-hating) tails.
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