A rechargeable AA battery is basically a packet of energy that may be used to power a variety of electronic devices, such as a flashlight, remote control, and gaming controller. ATP is similar to a little battery.
ADP and ATP as a cell's rechargeable battery?The chemical bonds that ADP and ATP contain act as energy storage devices, much like batteries. ADP functions like a partially charged battery since it has only two phosphate groups and fewer bonds. Due to the three phosphate groups that make up ATP, it functions like a fully charged battery and has more accessible bonds for storing energy.A rechargeable AA battery is basically a packet of energy that may be used to power a variety of electronic devices, such as a flashlight, remote control, and gaming controller. ATP is similar to a little battery. The ATP molecule is analogous in that it contains a small amount of chemical energy that can be used to fuel a cell's internal machinery.The chemical bonds that ADP and ATP contain act as energy storage devices, much like batteries.To learn more about rechargeable battery refer to:
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Which set of factors would increase stroke volume?
In synopsis, stroke volume might be expanded by expanding the contractility or preload or diminishing the afterload.
contractility. * Expanded thoughtful movement increments heart contractility. This makes cardiovascular filaments contract all the more powerfully at all degrees of preload. Notwithstanding end-diastolic volume, this instrument increments stroke volume by diminishing end-systolic volume.
Along these lines, stroke volume can increment by expanding EDV or diminishing ESV. ESV will go down on the off chance that the heart crushes harder and discharges more. The higher the stroke volume, the more noteworthy the cardiovascular result (for a given pulse).
Thoughtful excitement prompts the arrival of epinephrine and norepinephrine, the two of which increment pulse and increment contractility, which increments stroke volume.
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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
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
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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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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An advantage of using embryonic stem cells in medical research?
Answer:
regenerate or repair diseased tissue and organs.
Explanation:
write two difference between urbanization and sustainable development
According to the research, the correct answer is that sustainable development covers people's basic needs without harming the ecosystem, while urbanization maximizes the impact on resources, which in turn affects the health of the community and the ecosystem.
What is urbanization?It is the concentration of population and its activities (social, cultural and economic) in rural areas towards the urban zone.
In this sense, it increases consumer demand which directly affects the economic and social factors of sustainability in addition to its impact on the environment, on the other hand sustainable development can be included in seeking sufficient resources for all that reduces environmental impact and promotes modes of consumption and production in accordance with their own territorial, economic and cultural conditions.
Therefore, we can conclude that according to the research, sustainable development tries to meet the needs demanded by the environment, while in an urbanization it generates a great impact on the environment and quality of life.
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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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High explosives are more readily available than low explosives.
A. True
B. False
High explosives are more readily available than low explosives, so the affirmation is true. So the correct option is A.
What are high and low explosives?Explosives are materials that burn quickly which generate large amounts of gases. There are different types of explosives, there are high explosives and low explosives.
Low explosives will contain chemicals that will burn very quickly but need containment for it to explode. While high explosives will contain much faster detonating materials which have supersonic waves going through the material, which means they don't need to be contained.
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Answer: A
Explanation:
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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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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an abscess of the flap of tissue over an unerupted crown will cause all the following signs and symptoms, except: group of answer choices a) trismus b) fever c) bone loss d) lymphadenopathy
Lymphadenopathy is a condition marked by swelling of the lymph nodes, and is not indicative of an abscess on the flap of tissue over an unerupted crown.
Other symptoms, such as trismus, fever, and bone loss, are common signs of an abscess. Trismus, which is limited mouth opening, often results from the swelling of the soft tissues around the eruption site. Fever is usually a result of the body's response to the infection.
Finally, the infection can lead to bone loss due to damage and eventual loss of the tooth. In conclusion, lymphadenopathy is not a symptom of an abscess of the flap of tissue over an unerupted crown.
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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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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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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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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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T/F The amount of testosterone and sperm produced by the testes is dependent on the influence of FSH alone.
The statement the effect of FSH alone controls how much testosterone and sperm are generated by the testes is false
The influence of FSH alone determines how much testosterone and sperm the testes generate. When a couple is experiencing trouble conceiving, it is important to look at the male's sperm. Oxytocin, a hormone, and semen enzymes work together to improve sperm motility.
LH stimulates the testes' interstitial cells to produce testosterone in males (Leydig cells). The Sertoli cells, a part of the testicular tubule required for maintaining the growing sperm cell, are stimulated to produce more androgen-binding protein as a result of FSH.
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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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13. The synthesis of ATP from ADP results in:
a. ADP released
b. ADP storage
c. energy released
d. energy storage
Answer:
IG : (c)
Explanation:
If a cell needs to spend energy to accomplish a task, the ATP molecule splits off one of its three phosphates, becoming ADP (Adenosine di-phosphate) + phosphate. The energy holding that phosphate molecule is now released and available to do work for the cell.
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.
how will the arrangement of the lactococcus lactis
The arrangement of lactococcus lactis refers to its physical arrangement, which can impact its function. Lactococcus lactis is either a coccus (spherical) or a rod shape.
Lactococcus lactis is a gram-positive bacteria that can exist in either a coccus (spherical) or a rod shape. This shape can impact its ability to carry out certain functions, such as multiplying and colonizing surfaces.
Additionally, Lactococcus lactis can exist in a single cell form or in a clustered arrangement, which can affect its ability to interact with its environment and respond to various stimuli.
In general, the arrangement of lactococcus lactis can play a role in its ability to perform its various functions and its overall success in its environment.
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When hemoglobin is converted from the deoxy (T) form to oxybromoglobin (R):
A. it becomes more acidic and releases protons
B. carbamino formation is promoted
C. binding of 2,3-bisphosphoglycerate (BPG) is favored
D. bound NO is transferred to glutathione
E. all of the above are correct
When hemoglobin is converted from the deoxy (T) form to oxybromoglobin (R) carbamino formation is promoted.
Hemoglobin, abbreviated Hb or Hgb, is an iron-containing oxygen-transport metalloprotein found in virtually all vertebrate red blood cells as well as certain invertebrate organs. Hemoglobin in the blood transports oxygen from the respiratory organs (such as the lungs or the gills) to the rest of the body. There, it releases oxygen, allowing aerobic respiration to generate energy to power an organism's operations in a process known as metabolism.
Hemoglobin transports other gases as well: it transports some of the body's respiratory carbon dioxide as carbaminohemoglobin, in which CO2 is linked to the heme protein. The molecule also contains the crucial regulating component nitric oxide, which is linked to a thiol group in the globin protein and released along with oxygen.
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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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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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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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the envelope of a virus is derived from the host’s _________________.
The envelope of a virus is derived from the cell membrane of the host on which the virus resides.
Viruses can either be enclosed or not. The viral DNA and essential proteins are enclosed by one or more membranes in viruses with an envelope. During the construction and budding of the virus, these membranes are taken from the host cell. Numerous enveloped viruses, including the orthomyxo- (e.g., influenza), paramyxo- (e.g., Sendai), rhabdo- (e.g., vesicular stomatitis virus), retro- (e.g., human immunodeficiency virus, or HIV), and alpha-viruses (e.g., Semliki Forest virus (SFV)), comprise only one membrane. Other viruses, like the herpes virus, could go through a number of stages of budding and fusion with several internal membrane compartments before finally obtaining a single membrane through the exocytic pathway.
In order to enter a cell, enveloped viruses fuse their membranes. The genome-containing viral capsid or core is transported to the cytosol when the viral membrane unites with a cellular membrane.
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(answers for meosis pogil)
considering what you already know about mitosis in cells, what event must take place during interphase before a cell proceeds to division?
A cell must go through the process of DNA replication during interphase before it may divide. This means that in order for the cell to divide, it must generate a flawless clone of its genetic material, DNA.
What is mitosis?Mitosis is a stage of the cell cycle during which replicated chromosomes are split into two new nuclei. Mitosis results in the formation of genetically identical cells with the same number of chromosomes. As a result, mitosis is often referred to as equational division. The division of a single parent cell into two new daughter cells. From the parent cell, each daughter cell obtains a complete complement of chromosomes. This mechanism enables the body to regenerate and replace cells.
Here,
Before a cell can divide, it must go through the process of DNA replication during interphase. This implies that in order to divide, the cell must create a perfect replica of its genetic material, DNA.
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Microbial control methods that kill/destroy ______ are able to sterilize.a. virusesb. the tubercle bacillusc. endosporesd. cysts
Microbial control methods that kill/destroy endospores are able to sterilize. An endospore is a tough, dormant survival stage of the organism rather than a reproductive structure.
Endospores can withstand a lot, including boiling temperatures, the majority of disinfectants, low-energy radiation, drying, etc. The endospore can then persist until a number of environmental triggers cause germination, allowing one vegetative bacteria to emerge. According to reports, between 25 and 40 million years ago, a bee's GI tract that was preserved in amber had viable endospores. A halophilic (salt-loving) bacterium's viable endospores have also apparently been found in fluid inclusions in salt crystals that are over 250 million years old. It is believed that the inside of the endospore and the resulting dehydration play a crucial role in the endospore's resilience to heat and radiation.
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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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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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