Answer: To store food and water: They are equipped with a large vacuole in comparison to animal cells since the plants are immobile to gin nutrition from surrounding and they need to store as much food they can(an evolutionary feature to support survival).
Explanation:
There were 22 ice fishing shack on a lake each shack had a 9 pound of firewood firewood were sold in 3 pound bundles how many bundles were there in all
There were 66 bundles of firewood in total.
There were a total of 22 shacks, and each shack had 9 pounds of firewood. So the total amount of firewood is:
22 × 9 = 198 pounds.
Since firewood was sold in 3-pound bundles, we can find the number of bundles by dividing the total amount of firewood by 3:
198 pounds / 3 pounds/bundle = 66 bundles.
An ice fishing shack is a small shelter or structure used by ice fishermen on frozen lakes or rivers to protect themselves from the elements while fishing. The shacks are usually made of wood or metal and can be dragged onto the ice using sleds or trailers.
They often have holes in the floor to allow for fishing through the ice, as well as heaters or stoves to keep the interior warm. Ice fishing shacks come in a variety of sizes and styles, ranging from simple one-person tents to large, fully-equipped cabins.
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cow-nose, manta, eagle, butterfly, and bat are all varieties of what largest group of cartilaginous fishes?
They are all varieties of rays, which are a type of cartilaginous fish. Rays belong to the class Chondrichthyes, which also includes sharks, skates, and sawfish.
What is rays?Rays are a type of fish that belong to the Elasmobranchii class of cartilaginous fish. They are closely related to sharks and skates, and are found in oceans around the world. Rays have flattened bodies, with wide pectoral fins, and a long tail that can be used to defend themselves or to move quickly through the water. They feed on small fish, mollusks, and crustaceans. Rays can vary in size, with some species growing up to 6.5 feet long. They are often found in shallow waters, near coral reefs and sandy bottoms, where they can find food and shelter. Rays are an important part of the ocean’s ecosystem, as they provide an important food source for other fish and sea creatures.
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pedigree a is most likely x-linked recessive. what is/are the genotype(s) of the parent(s) that transmitted the mutant allele(s) to their offspring?
X-linked recessive illness in Pedigree A. B autosomal dominant pedigree. autosomal recessive pedigree D-generation, X-linked dominant.
How do genotypes work?Gene pool as a whole is characterized by the term "genotype," which roughly refers to an organism's genetic makeup. The phrase can also be used in a more particular sense to refer to the various alleles that an organism contains.
Humans are a diploid species, meaning that each genetic locus contains two alleles, one of which was inherited from each parent. Every pair of alleles in a gene is a representation of its genotype. For instance, the bloom color gene in sweet pea plants has two alleles.
The flower color gene, for instance, has two alleles in sweet pea plants. One allele, represented by the uppercase letter F, codes for purple flowers, whereas the other, represented by the lowercase letter f, codes for white flowers. FF, Ff, or ff are the three genotypes that could exist in a diverse population of sweet pea plants. The phenotype of a plant, in this case, the external characteristics of its blooms, is influenced by the genotype of that plant.
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Fill The Blank? eardrum vibrations are transmitted by three tiny bones located in _____
The incoming sound waves cause the eardrum to vibrate, and the vibrations are transmitted to three tiny bones in the middle ear.
The malleus, incus, and stapes are the names of these bones. The malleus (hammer), incus (anvil), and stapes bones are named after their shapes (stirrup). The ossicles amplify the sound even more. The stapes bone is a tiny bone that connects the middle ear to the inner ear.
The middle ear is made up of three tiny bones: Attached to the eardrum is a hammer (malleus). Anvil (incus) — in the middle of the bone chain. Stirrup (stapes) — a device that is attached to the membrane-covered opening that connects the middle and inner ear (oval window)
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What are examples of acute coronary syndromes?
Acute coronary syndromes (ACS) are a group of conditions that result from sudden, reduced blood flow to the heart muscle.
Three main types of acute coronary syndromes are:
Unstable angina: This is a condition in which chest pain or discomfort occurs with increasing frequency or intensity and may be caused by reduced blood flow to the heart muscle.
Non-ST-elevation myocardial infarction (NSTEMI): This is a type of heart attack that occurs when a partial blockage in a coronary artery limits the amount of blood and oxygen that reaches the heart muscle.
ST-elevation myocardial infarction (STEMI): This is a more severe type of heart attack that occurs when a complete blockage in a coronary artery prevents any blood flow to the heart muscle.
These three types of acute coronary syndromes can range in severity and may have different outcomes, but they are all caused by disruption to blood flow to the heart muscle and require prompt medical attention.
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true or false: for a trait with a sex-linked recessive mode of inheritance, it is possible to have a ry x ry cross.
The given statement (for a trait with a sex-linked recessive mode of inheritance, it is possible to have an rY x RY cross) is true because it is possible.
Diseases that are linked to a person's sex can be handed down through families on either the X or the Y chromosome. The chromosomes X and Y are the sex chromosomes. An example of dominant inheritance is when a disease is caused by a defective gene inherited from one parent even while the corresponding gene inherited from the other parent is healthy.
An autosomal recessive inheritance is a form of inheritance that can be used to pass on a genetic feature or condition from a parent to a kid. When a child receives one copy of a mutant (changed) gene from each parent, it is possible for the child to have a genetic disease. The parents of a kid who has a disorder that is passed down through autosomal recessive inheritance do not typically have the condition themselves.
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What occurs when an axon is not conducting a nerve impulse and there is more sodium
outside the axon and more potassium inside the axon?
Select one:
O a. An action potential
O b. An autonomic potential
c. A resting potential
O d. A somatic potential
Oe. A threshold potential
When an axon is not transmitting a nerve impulse, more sodium is present outside and more potassium is present inside the axon, which results in the resting potential.
What is axon?A nerve cell, or neuron, projects a long, thin portion called an axon that carries electrical impulses away from the neuron's cell body. It is in charge of relaying data from one neuron to the next, whether it be to a muscle cell or another neuron. The action potentials, which are electrical impulses that flow along the axon, enable quick and effective communication between neurons and other cells in the body.
At this point, the electrical potential of the axon differs because its inside is negatively charged relative to its exterior. The selective permeability of the cell membrane to ions and the action of ion pumps maintain this electrical potential. When a change in the membrane potential surpasses a certain threshold, the resting potential serves as a baseline from which an action potential can be started.
When the threshold is crossed, voltage-gated ion channels open, allowing positively charged ions to quickly and briefly enter the membrane and depolarizing it, resulting in an action potential.
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lysosomes group of answer choices are described by all of these answers. contain digestive enzymes. are concerned with intracellular digestion. are formed by the golgi apparatus. previousnext
A lysosome is a cell organelle that contains digestive enzymes and is membrane-bound. Lysosomes are engaged in a variety of cellular functions.
They degrade extraneous or worn-out cell components. They might be utilized to eliminate invading viruses and bacteria. Lysosomes serve as the cell's digestive system, degrading material brought in from outside the cell as well as digesting outmoded components of the cell itself.
Lysosomes are membrane-bound organelles that may be found in all eukaryotic cells. They are commonly referred to as terminal catabolic stations because they clear cells of trash and scavenge metabolic building blocks that support crucial biosynthetic events during famine.
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How much of the population of europe died during the black death?
Estimates vary,but it is said that between 75-200 million and 200 million people or between 30% and 60% of Europe's total population died during the black death.
What is black death?Black Death is a devastating disease that was responsible for the death of an estimated 75-200 million people in Europe and Asia during the 14th century. It is also known as the bubonic plague and is caused by Yersinia pestis bacteria. The disease was spread primarily through fleas and rats, and was spread through contact with the infected or their remains. Symptoms included fever, chills, headaches, and aching joints, as well as swollen and painful lymph nodes. In some cases, the disease progressed to cause vomiting, diarrhea, and a rash. Death usually occurred within three to five days of infection. Treatment options were limited and the mortality rate was incredibly high.
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which is not a method of hormone action? which is not a method of hormone action? control of gene expression and protein synthesis control of ion or molecule transport across cell membranes control of electrical signaling pathways control of enzymatic reaction rates all are methods of hormone action.
Control of electrical signaling pathways is not a method of hormone action.
Hormones are like little messengers, constantly communicating with our cells to control various bodily processes. And they do it in a few ways:
Gene expression and protein synthesis controlIon and molecule transport across cell membranes controlEnzymatic reaction rate controlBut when it comes to electrical signaling pathways, hormones don't directly control the flow of electrical signals along nerve cells or muscles.
Instead, they use their other mechanisms, like controlling ion or molecule transport across cell membranes, to influence electrical signaling indirectly.
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What is population interaction between species?
Population interaction between species basically refers to the effects which the organisms in a particular community have on one another when they interact with each other in different ways.
Ecology is basically a very vast arena in Biology, which is a study of the organisms, how they are distributed and their interaction with each other as well as their environment.
In order to study the relationship that exists between prey, predators and other interactions as well as the phenomenon like the competition, camouflage, mimicry etc. then it is also mandatory to study the theory of population interaction among the species of populations.
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gizmo warm-up the circulatory system gizmo shows the heart and blood vessels that make up the circulatory system. look at the heart. how many chambers does the heart have?
Gizmo warm-up the circulatory system gizmo shows the heart and blood vessels that make up the circulatory system. There are four chambers in the heart.
The heart is a big, muscular organ that is responsible for pumping blood that is rich in oxygen and nutrients to the various tissues of the body. It does this by traveling via the blood vessels. It is composed of a total of four chambers.
Blood is necessary because it transports oxygen and nutrients to different regions of the body, allowing those components to function properly. The circulation of blood throughout your body is controlled by your heart.
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by the time the contents of the gi tract reach the , the three energy-yielding nutrients have been digested. group of answer choices pharynx duodenum ileum pancreas stomach
By the time the contents of the GI tract reach the ileum , the three energy-yielding nutrients have been digested.
The correct option is option c.
The GI tract or the gastrointestinal tract is basically the tract or the passageway of the digestive system of the human body which leads from the mouth and then all the way to the anus. The GI tract consists of all the major organs present in the digestive system, in humans as well as the other animals, including the esophagus, stomach, and also intestines.
The small intestine is present right after the stomach and plays an important role in digestion as well as the absorption of food which is coming from the stomach. It is divided into three part namely the duodenum, jejunum, and ileum. When the contents of the GI tract finally reach the ileum, the three energy-yielding nutrients have already been digested.
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nucleic acid polymers are made up of _______ monomers.
Nucleic acid polymers which are made up of nucleotide monomers.
Nucleic acids are long polymers made up of repeating units called nucleotides. Nucleotides are the building blocks of nucleic acids and consist of three components: a nitrogen-containing base (adenine, guanine, cytosine, or thymine in DNA, or adenine, guanine, cytosine, or uracil in RNA), a sugar molecule (deoxyribose in DNA or ribose in RNA), and a phosphate group.
When nucleotides bond together, they form the backbone of the nucleic acid polymer, with the nitrogen-containing bases facing inward to form the coding portion of the molecule. The nucleic acid polymers are held together by covalent bonds between the sugar and phosphate groups of adjacent nucleotides, forming a sugar-phosphate backbone.
The sequence of nitrogen-containing bases determines the genetic information stored in nucleic acids, and the nucleotide monomers provide the structure for this information to be encoded and transmitted.
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this is the very high and low tides that occur during the new moon or the full moon when the sun, moon, and earth are approximately aligned is called?
Answer:
Spring tides
Explanation:
Such high tides are called spring tides. During new moon and full moon the gravitational forces of sun and the moon work together with combined force and thus this spring tide occurs.
What is an Endocervical transformation zone component?
The endocervical transformation zone component is present in our cervix and is checked during pap smear test.
Presence of the squamous metaplastic or the endocervical cells on the Pap smear test results can raise some questions as well as concerns. However, the presence of such cells isn’t always a cause for concern.
The presence of endocervical cells on the test basically means that the doctor happened to sample the cells from the inside of the cervix during the Pap smear test. Endocervical cells are basically mucus-producing glandular cells which are located within the inner cervix or the endocervix. During a Pap smear, the doctor or nurse may take a sample of these cells, but that is not always the case.
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please someone explain "a diploid reproductive cell dovides mitotically to form four haploid cells called spermatids"
1) What might happen if you try to protect areas that people live on, tribes use for hunting or farmers
use to grow crops?
Protecting areas that people live on, tribes use for hunting or farmers use to grow crops might result in conflicts or resistance if the people who depend on these areas for their livelihoods feel that their rights and needs are not being considered or respected.
How can land conflicts be resolved?Land conflicts can be resolved through a variety of approaches, including Mediation and negotiation, Legal action, Community-based approaches. It could also lead to economic hardship for the affected communities if they are unable to continue their traditional practices and access the resources they need.
Effective communication and collaboration with the communities and consideration of their perspectives and needs is important in implementing sustainable and fair conservation practices.
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if the frequencies are significantly different, then one of the assumptions of the hardy-weinberg principle was probably violated. explain which one was violated in your answer. if none were violated, explain why this is the case.
If the frequencies are significantly different, then one of the assumptions of the hardy-weinberg principle was probably violated which is the panmixia principle, but if it is preserved then we can estimate the allele and genotypic frequencies in the population.
What is the hardy-weinberg principle?The hardy-weinberg principle is a model used in population genetics to estimate the genotypic and allele frequencies in the population when conditions are ideal.
Therefore, with this data, we can see that hardy-weinberg principle needs to fulfill the idea of panmixis or random mating to be fulfilled.
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what amino acid becomes essential when phenylalanine is lacking in the diet? a. glycine b. arginine c. tyrosine d. glutamine
The amino acid that becomes essential when phenylalanine is lacking in the diet is (c) Tyrosine .
Phenylalanine is defined an an essential amino acid that our bodies cannot produce on their own, and it must be obtained through our diet.
The Phenylalanine plays an important role in several metabolic processes, including the synthesis of other important compounds such as dopamine, norepinephrine, and thyroxine.
When the phenylalanine is lacking in diet, tyrosine becomes an essential amino acid.
Tyrosine is produced from phenylalanine in the body and is involved in the synthesis of neurotransmitters, hormones, and melanin, a pigment responsible for skin color.
The given question is incomplete , the complete question is
What amino acid becomes essential when phenylalanine is lacking in the diet ?
(a) Glycine
(b) Arginine
(c) Tyrosine
(d) Glutamine
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can someone please help me with the question at the bottom??
In the absence of mutation, gene flow, random mating, and selection, the gene frequencies can be determined from the equation if the allele frequencies are known.
Only a theoretical method of determining gene frequency is used.
Therefore, another allele's frequency can be estimated if the frequency of one allele is known.
What is mutation?
Any modification to the DNA sequence of a cell. Mutations can occur as a result of environmental DNA-damaging agents being exposed to, or as a result of errors in cell division. Mutations could be harmful, helpful, or ineffectual. However, if mutations occur in the cells that make eggs or sperm, they may be passed on to offspring. Mutations that occur in other types of cells are not passed on to offspring. Specific mutations have been linked to cancer and other disorders. A mutation is also referred to as a variant.
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the primary function of the outer ear is to: collect sound waves and funnel them into the ear canal. protect the delicate inner structures of the ear from loud sounds. provide a convenient place for wearing earrings. transfer sounds to the cochlear membrane.
The primary function of the outer ear is to collect sound waves and funnel them into the ear canal. Option A is correct.
The pinna (sometimes spelled auricle or auricula) has been the fleshy part of the ear that extends beyond the skull. The primary purpose of the pinna is to gather sound waves from the surrounding environment. The sound waves are received by the outer ear and sent down the ear canal towards the eardrum.
This causes the eardrum to vibrate, resulting in sound. It serves like a funnel for all these waves, magnifying and guiding them into the ear canal. Sound waves enter the outer ear & travel via a thin tunnel known as the ear canal to the eardrum. The incoming sound waves cause the eardrum to vibrate, and the vibrations are transmitted to three small bones in the middle ear.
The complete question is
The primary function of the outer ear is to:
A) Collect sound waves and funnel them into the ear canal.
B) Protect the delicate inner structures of the ear from loud sounds.
C) Provide a convenient place for wearing earrings.
D) Transfer sounds to the cochlear membrane.
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Which is a characteristic of mutations?
They usually produce dominant traits.
They usually are expressed in the next generation.
They meet a species' need.
They occur randomly
Mutations occur randomly at any place in the DNA sequence and may occur in any cell, hence option D is correct.
What is mutation?Any alteration in the DNA base sequence, also known as a heritable change in the genome, is referred to as a mutation.
The most frequent modification involves the replacement, insertion, rearrangement, or deletion of one or more bases. A mutant phenotype need not result from a mutation.
A mutation is a change to an organism's DNA sequence. Errors in DNA replication during cell division, exposure to mutagens, or viral infection can all cause mutations.
Therefore mutation can occur randomly.
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what is the main difference between the life cycles of members of phylum bryophyta and phylum pteridophyta? group of answer choices
Phylum Pteridophyta has a more complex life cycle than Phylum Bryophyta. Here option B is the correct answer.
The main difference between the life cycles of members of the Phylum Bryophyta and Phylum Pteridophyta is the presence or absence of vascular tissue, which is responsible for transporting water and nutrients throughout the plant.
Phylum Bryophyta, also known as mosses, has a simple life cycle characterized by an alternation of generations. The haploid gametophyte generation is the dominant phase and is photosynthetic. The sporophyte generation is dependent on the gametophyte and is composed of a stalk and capsule that produces spores.
Phylum Pteridophyta, also known as ferns, have a more complex life cycle with the alternation of generations. Ferns have a vascular system that allows for the transport of water and nutrients throughout the plant. The gametophyte generation is small and often lacks chlorophyll, while the sporophyte generation is larger and is the dominant phase.
Complete question:
what is the main difference between the life cycles of members of phylum Bryophyta and phylum Pteridophyta? group of answer choices
A) Phylum Bryophyta has a more complex life cycle than Phylum Pteridophyta
B) Phylum Pteridophyta has a more complex life cycle than Phylum Bryophyta
C) Both Phylum Bryophyta and Phylum Pteridophyta have similar life cycles
D) The life cycles of Phylum Bryophyta and Phylum Pteridophyta cannot be compared.
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plss help quickly!!!!! i will give 15 points
The cell wall surrounds the plasma membrane of plant cells and provides tensile strength and protection against mechanical and osmotic stress. It also allows cells to develop turgor pressure, which is the pressure of the cell contents against the cell wall.
Answer:
ENDOLITHIUM
is the develop tugor pressure which protect against the cell wall
the classification of an organism is important for scientists because____.
which the chromosome inherited from either the father or mother can sort into any gamete, produces the potential for tremendous genetic variation.
This phenomenon is known as independent assortment and it occurs during meiosis, the process of cell division that results in the formation of gametes in sexually reproducing organisms.
During meiosis, homologous chromosomes, which are pairs of chromosomes that contain the same genes, separate from each other and randomly sort into different gametes. This means that the chromosome inherited from either the father or the mother can sort into any gamete.
As a result, each gamete will contain a unique combination of chromosomes, leading to the potential for tremendous genetic variation in offspring.
This variation is essential for the process of evolution, as it provides the genetic diversity necessary for populations to adapt to changing environments and improve their chances of survival.
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The mechanism by which testosterone alters cell function is by:_________
Answer: The mechanism by which testosterone alters cell function is by binding to a receptor protein that enters the nucleus and activates specific genes The primary function of transcription factors is to regulate gene expression
Explanation:
If a pea plant were homozygous recessive for height, how would its alleles be represented?
The alleles for a homozygous recessive pea plant for height would be represented as tt.
In pea plants, the allele for height is determined by the gene T.
The dominant allele (T) codes for tall plantsThe recessive allele (t) codes for short plants.Homozygous refers to an organism that has two identical copies of a particular gene, one from each parent. When an organism is homozygous recessive for a trait, it means that it has two copies of the same recessive allele (in this case, tt). This results in the expression of the recessive trait (short height).
Key points:
In pea plants, the gene for height is determined by the T allele.The dominant allele (T) results in tall plants and the recessive allele (t) results in short plants.Homozygous refers to an organism having two identical copies of a gene, one from each parentHomozygous recessive refers to an organism having two copies of the same recessive allele (in this case, tt)The expression of the recessive trait (short height) results from the presence of two copies of the same recessive allele.Learn more about alleles here:
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Population ________ is the study of population sizes and the causes of these changes
Population demography is the study of population sizes and the causes of these changes.
What do you mean by population?
Population refers to the total number of people, animals, or things that inhabit a particular area or region. It can refer to a geographic area, a country, a city or town, or to a particular group or species of living creatures.
Demography is the study of population size and structure, as well as its dynamics over time. It involves the analysis of population data, such as fertility rates, mortality rates, migration patterns, and economic and social trends. Demographers use this data to understand population trends and how they affect a given population. They can then use this analysis to inform policy decisions and address population-related issues. Demography is important because it helps to better understand the social and economic development of a population, which can have a large impact on public health, economic development, and environmental sustainability.
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