The transcription factor attaches to the TATA box, and this complex then entices additional transcription factors including those attached to enhancers to the promoter region.
What actions do eukaryotes take to start transcription?The three sequential phases of eukaryotic transcription initiation, elongation, and termination are carried out in the cell's nucleus. Transcriptional factors are necessary for eukaryotes because they must first attach to the promoter area and then aid in the recruitment of the proper polymerase.
What is the starting point of eukaryotic transcription initiation?RNA polymerase must connect to a DNA sequence upstream of a gene in eukaryotes in order to start transcription, much like in prokaryotic organisms.
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Define the definition: Codominant
what is the meaning of bio
Answer:
A biography, or simply bio, is a detailed description of a person's life. It involves more than just the basic facts like education, work, relationships, and death; it portrays a person's experience of these life events. ... Works in diverse media, from literature to film, form the genre known as biography.
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The signs used depend on the species being surveyed and include the presence of runways and tracks on *
1 point
(a). soft substrates
(b) hard substrate
(c) dry mud
(d) rocks
Answer:
(a). soft substrates
Explanation:
Mobile organisms can be measured by both direct and indirect methods. Direct methods may involve observing the actual behavior (e.g., scoring via timing). Moreover, indirect methods are those where the technique used depends on the species being examined, collecting information such as through recording of tracks in the soft substrate (e.g., mud, sand, snow), presence of fur/feathers, droppings (mammals), etc. For example, indirect observation of insects may involve the determination of exoskeletons, sounds, etc.
On a topographic map, which feature does light green usually indicate?
farmland
towns
lakes
woods
Answer:
the green part would normally represent vegetation so its probably safe to say that farmland is the green : )
Explanation:
how the body defends itself against infection
Answer: poop
Explanation: if you cover yourself in poop it heats your body up an animal does this but i cant remember which one
Answer:
Natural immunity: inborn defence. External defence is maintained by means of intact skin, by mucous, which traps and eliminates micro‐organisms, and by body secretions such as saliva and perspiration, which have disinfectant properties.
Question: What patterns appear when two traits are inherited? 1. Observe: Breed a black-fur, black-eye mouse with a white-fur, red-eye mouse. Click Breed several times, and then drag two of the offspring into the Holding Cages below. Move the cursor over a mouse to see its genotype, or allele combination. A. What is the genotype of the black-fur parent? _______________________________ B. What is the genotype of the white-fur parent? _______________________________ C. What are the genotypes of the offspring? __________________________________
In complete dominance, the dominant allele hides the expression of the recessive allele. Heter0zyg0us individuals carry both alleles but express the dominant trait. A. FF / B. ff / C. Ff
-----------------------------------
This problem proposes a situation that involves two somatic diallelic genes expressing mendelian inheritance with complete dominance.
One of the genes codes for fur color, while the other gene codes for eye color.
Since the question is focused on fur color, we are going to perform the crosses using this single gene.
Let us name the gene for fur color F
Allele F is dominant and expresses black colorAllele f is recessive and expresses white colorWhen the dominant allele completely masks the recessive allele, we talk about complete dominance. This is the case of individuals that are heter0zyg0us for a particular gene and express the dominant trait. The dominant allele is hiding the expression of the recessive allele.
According to this, we can assume the following possible genotypes and phenotypes
Genotypes Phenotypes
FF H0m0zyg0us dominant Black
Ff Heter0zyg0us Black F allele masks f allele
ff H0m0zyg0us recessive White
The dominant trait is black, while the recessive one is white.
When you place the parent black and white mice on their corresponding boxes, and click breed several times, you always get black mice. The whole progeny is black, no matter what.
This is suggesting you that
The black parental is h0m0zyg0us dominant for the fur color. Of course, the other parental is h0m0zyg0us recessive for white color. And if this is the case, then the whole progeny expresses the dominant trait (black) but has the heter0zyg0us genotype.So, let us perform the cross
Cross : Black mouse x White mouse
Parentals) FF x ff
Gametes) F F f f
Punnett square) F F
f Ff Ff
f Ff Ff
F1) 100% of the progeny is expected to be Ff, heter0zyg0us and black-
furred.
As you can see, no matter how numerous is the F1, all individuals will be heter0zyg0us black .
A.What is the genotype of the black-fur parent? H0m0zyg0us dominant FF
B. What is the genotype of the white-fur parent? H0m0zyg0us recessive ff
C. What are the genotypes of the offspring? Heter0zyg0us Ff
-----------------------------------
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Determine whether each scenario is an example of phenotypic plasticity or evolution in a phenotype's plasticity.1- The leaves growing in shade on a sugar maple tree are larger than the leaves growing in full sun on the same tree.?a) evolution in a phenotype's plasticityb) phenotypic plasticity2- The skin of a green anole lizard shifts from green to brown when the anole moves from a leaf to the bark of a tree.a) evolution in a phenotype's plasticityb) phenotypic plasticity3- The fur of snowshoe hares is brown in summer and white in winter, but populations in warming areas have begun to retain their brown fura) evolution in a phenotype's plasticityb) phenotypic plasticity
Phenotypic plasticity: maple tree leaves growing in shade are larger; skin of green anole lizard changed color when moving from leaf to bark. Evolution in a phenotype's plasticity: Snowshoe hare's fur (brown in summer, white in winter), in warming areas have started to retain brown fur.
Phenotypic plasticity is the ability of the genotype of an individual to produce different phenotypes when exposed to different types of environments. This is because the physiology changes according to the environment.
Evolution in phenotypic plasticity occurs when the change in phenotype due to environmental conditions gets refined in the subsequent generations of an individual.
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2.The functions of the rough endoplasmic reticulum and the Golgi body are related because:
A .proteins synthesised by the rough endoplasmic reticulum are modified by the Golgi body
B .proteins synthesised by the Golgi body are modified by the rough endoplasmic reticulum
C. lipids synthesised by the Golgi body are modified by the rough endoplasmic reticulum
D .lipids synthesised by the rough endoplasmic reticulum are modified by the Golgi body
The functions of rough endoplasmic reticulum and Golgi body are related because A .proteins synthesised by the rough endoplasmic reticulum are modified by the Golgi body
Both the Golgi body and the rough endoplasmic reticulum (RER) are important in the production and processing of proteins. Ribosomes, which are found throughout the RER and produce proteins, are subsequently transferred into the lumen of the RER for further processing. These proteins are delivered by the RER to the Golgi body, where they are modified, sorted, and packaged for distribution to various locations inside cell or for secretion beyond it.
The Golgi body is in charge of altering proteins that the RER has synthesised. This might entail altering amino acids by adding or removing functional groups, adding carbohydrate chains to proteins to create glycoproteins, or chopping off pieces of proteins to create smaller peptides.
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Investigate and draw the structure (and provide the name) for 3 common antioxidants that are commonly consumed and write a detailed description of how these antioxidants work. Then, provide a mechanism clearly illustrating how one of the antioxidants works
Answer:
vitamin A.
vitamin C.
vitamin E
Explanation:
Vitamin A act as an antioxidant in our body by neutralizing the free radicals present in our body which are responsible for a great damage in our body. polyene units present in vitamin A is responsible for neutralizing the thiyl radicals and peroxyl radicals which causes oxidation. Vitamin C has the ability to stabilize ascorbyl-free radical by giving the hydrogen atom which removes the oxidizing agent from the body. Vitamin E is responsible in order to stop the formation of Reactive oxygen species that cause oxidation in our body when the oxidation of fats occur.
A student is observing a group of
cells under a microscope
Answer:
ok so see it by magnifi,a
Explanation:
since the question isnt fully written sorry
The brain and spinal cord are part of the _______ nervous system. The electrical charges that act as nervous signals are called _______. Jellyfish do not have a brain. Instead their nervous system is called a _______. After nervous systems began to develop in bilaterally symmetric animals, some developed ventral, or front, nerve cords, while chordates developed _______ nerve cords. Skeletons that allow for movement by using muscles and squeezing liquid to change the body shape are called _______ skeletons. _______ do not grow with arthropods, and so occasionally must be shed and regrown from chitin. Muscles move endo- and exoskeletons by _______. _______ is the joining of two gametes called sperm and egg. A fish that lays her eggs in a cluster is initiating _______ fertilization. _______ are an adaptation by reptiles to allow for reproduction and embryo development on land. Describe three different strategies used by three different animals to thermoregulate. If you see a snake coiled up in a sunny patch of grass, what can you probably conclude about the type of thermoregulator it is. Why?
The brain and spinal cord are part of the central nervous system.
The electrical charges that act as nervous signals are called action potentials or nerve impulses.
Jellyfish do not have a brain. Instead, their nervous system is called a nerve net.
After nervous systems began to develop in bilaterally symmetric animals, some developed ventral nerve cords, while chordates developed dorsal nerve cords.
Skeletons that allow for movement by using muscles and squeezing liquid to change the body shape are called hydrostatic skeletons.
Exoskeletons do not grow with arthropods, and so occasionally must be shed and regrown from chitin.
Muscles move endo- and exoskeletons by contracting and relaxing.
Fertilization is the joining of two gametes called sperm and egg.
A fish that lays her eggs in a cluster is initiating cluster or mass fertilization.
Amniotic eggs are an adaptation by reptiles to allow for reproduction and embryo development on land.
Describe three different strategies used by three different animals to thermoregulate.
Elephants: Elephants thermoregulate by using their large ears as cooling devices. They flap their ears to increase surface area and enhance heat loss through evaporative cooling.Desert Lizards: Desert lizards employ behavioral thermoregulation by basking in the sun to absorb heat and warming their bodies. They also retreat to shade or burrows to avoid excessive heat when needed.Penguins: Penguins have a unique thermoregulation strategy. They huddle together in large groups to conserve body heat and shield themselves from the cold Antarctic winds, effectively reducing heat loss and maintaining body temperature.If you see a snake coiled up in a sunny patch of grass, what can you probably conclude about the type of thermoregulator it is. Why?
If you see a snake coiled up in a sunny patch of grass, you can probably conclude that the snake is an ectotherm. Ectotherms rely on external heat sources, such as the sun, to regulate their body temperature. By basking in the sun, the snake absorbs heat, which helps raise its body temperature to a suitable level for proper physiological functioning.
Answer:
1. central
2. action potential
3. nerve net
4. dorsal
5. hydrostatic
6. Exoskeletons
7. contraction/contracting
8. Fertilization
9. external fertilization
10. Eggs
11. Animals with fur thermoregulate by panting. Winged birds will flap against their mouths/heads to dissipate heat. Humans will produce sweat to evaporatively cool. Polar bears have developed blubber. Bears drop body temperatures during hibernation.
12. Seeing a snake using the warmth of the sun leads us to conclude that it is likely a thermo conformer that cannot produce its own body heat.
Using the following data, calculate the
population growth rate for Zambia:
CBR= 2.9%, Immigration = 1%,
CDR = 2.1%, Emigration = 1%
(Portions of the numeric data are factual.)
HINT: (CBR + Immigration) - (CDR + Emigration) = Population Growth Rate
A. 82%
C. -0.00802%
B. 0.8%
D. 8.025%
Population growth rate for Zambia is 0.8 % when CBR= 2.9%, Immigration = 1%,CDR = 2.1%, Emigration = 1% are as given above.
What is CBR?The crude birth rate is the number of live births per 1,000 of the population at the midyear census. long explanation The crude birth rate is the number of live births per 1,000 of the expected population at the midyear mark.
Given data;
CBR= 2.9%, Immigration = 1%,
CDR = 2.1%, Emigration = 1%
Now to find the Population Growth Rate use the given formula;
(CBR + Immigration) - (CDR + Emigration) = Population Growth Rate
Population Growth Rate= (CBR + Immigration) - (CDR + Emigration)
the current population of Zambia =18.92 million
now
CBR= 2.9% of 18.92 million=548680
CDR = 2.1% of 18.92 million=397320
Immigration = 1% of 18.92 million=189200
Emigration = 1% of 18.92 million=189200
now putting the values on eq.
Population Growth Rate= (CBR + Immigration) - (CDR + Emigration)
Population Growth Rate= (548680 +189200)-(397320 + 189200 )
Population Growth Rate=151360 *100/18.92 million
Population Growth Rate=0.8%
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in only one parent is required to produce offspring. 2. is a method of reproduction for some types of bacteria. 4. some simple organisms, such as hydras and sponges, are able to reproduce asexually by .
In asexual reproduction only one parent is required to produce offspring. The benefit of asexual reproduction is the way that posterity can be effectively made without the requirement for an organization.
Asexual reproduction is a sort of propagation that doesn't include the combination of gametes or change in the quantity of chromosomes. The posterity that emerge by agamic generation from either unicellular or multicellular creatures acquire the full arrangement of qualities of their single parent and accordingly the recently made individual is hereditarily and truly like the parent or a precise clone of the parent.
Asexual reproduction is the essential type of multiplication for single-celled creatures, for example, archaea and microorganisms. Numerous eukaryotic creatures including plants, creatures, and parasites can likewise imitate asexually. In vertebrates, the most widely recognized type of agamic propagation is parthenogenesis, which is regularly utilized as an option in contrast to sexual proliferation in times whenever conceptive open doors are restricted. Komodo mythical beasts and some screen reptiles can likewise duplicate agamically.
Hence, asexual reproduction is the required answer.
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(Complete question) is:
in _______only one parent is required to produce offspring.
The heart pumps _____ through the blood _____. the blood carries food and a gas called _______ in one direction. it takes food, cells ________ and the gas _______ in another direction
Answer:
blood, vessels, oxygen, (heat, hormones), carbon (iv)oxide
How are mates limiting factor? Isn’t having mates in fact going to increase population
Answer: How can limiting factor affect population growth?
Limiting factors are resources or other factors in the environment that can lower the population growth rate. Limiting factors include a low food supply and lack of space. Competition for resources like food and space cause the growth rate to stop increasing, so the population levels off
Explanation:
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In this project, you will make a graphic to help you understand who the producers and consumers are. You can make your graphic in any way that makes sense to you; a bulleted list, a pyramid, a Venn diagram, etc. Your graphic should be clear and easy to understand. You can create it in a Word document, Power Point Presentation, Publisher, or any other graphics program that you are familiar with. Do additional research if you need to find out about any words on the list.
Click here to make a printout of a pyramid.
From the following list, Separate out the producers. Make sure you have clearly labeled this group.
acorns
deer
mice
apple
trees
eagles
owls
cabbage
frogs
potatoes
carrots
grains
rabbits
chickens
grass
squirrels
corn
horses
wolves
cows
lettuce
worms
Next, separate out the plant eating consumers. These are the ones that eat only producers. Make sure to label this group clearly. Last, separate out the predators, making sure to label this group clearly in your presentation. After completing the lab, respond to the following questions:
Were there more producers than consumers and more consumers than predators on your pyramid? Why or why not? Were there any that could have fit in more than one category?
A mouse eats 100 times his own weight in grain in a lifetime. You can see that plants must produce a great amount of food for just one mouse. What do you think would happen if grain was no longer available for the mouse to eat? How would it affect other organisms in your ecosystem?
Answer:
Producers:
Acorns (produced by oak trees)Apples (produced by apple trees)Cabbage (a leafy green vegetable cultivated as an annual plant)Potatoes (tubers produced by the potato plant)Carrots (root vegetables, usually orange in color)Grains (wheat (produced by wheat plants), barley (produced by barley plant), etc.)Grass (produces seeds and is a primary food source for many herbivores)Corn (a cereal plant that yields large grains, or kernels, set in rows on a cob)Lettuce (a leafy green plant grown for its often-crunchy leaves)Trees (producing oxygen as a byproduct of photosynthesis and also yielding food items like fruit and nuts)Plant-eating Consumers (Herbivores):
Deer (eat various plants and fruits, they are herbivores)Rabbits (eat grass, roots, and leafy greens; they are herbivores)Horses (eat grass and grains; they are herbivores)Cows (eat grass and grains; they are herbivores)Squirrels (primarily eat acorns, grains, seeds, and fruits)Mice (eats mainly plants, seeds, grains, fruits, and vegetables)Chickens (often fed grains, vegetables, and fruits)Predators (Carnivores):
Eagles (predatory birds that feed on smaller animals; they are carnivores)Owls (nocturnal birds that prey on small mammals, birds, and insects; they are carnivores)Wolves (carnivorous mammals that prey on deer, rabbits, and other smaller animals; they are carnivores)Frogs (amphibians with a carnivorous diet, eating insects, small mammals, small fish, spiders, and worms)Detritivores (although not mentioned in the question, they are crucial in every ecosystem):
Worms (in general, worms are classified as detritivores).To answer your questions:
In this bulleted list, there are more producers than consumers and more consumers than predators. This is typical of most ecological pyramids because each level depends on the one below it for food. There are always fewer organisms at the top of the pyramid because energy is lost at each level due to the laws of thermodynamics.For example, squirrels can be considered both plant-eating consumers (as they eat acorns, tree bark, and fruits) and potential predators (as they can be omnivorous, eating small insects and bird eggs). Similarly, mice can be categorized as plant-eating consumers, but they can also be omnivorous, consuming insects and occasionally the remains of deceased animals.If grain was no longer available, the mouse population would be significantly affected. Mice rely heavily on grains for their energy and nutrition. If this food source were suddenly unavailable, the mice would either need to find another food source, like fruits or vegetables, or their population would likely decrease due to starvation. This change would also impact other levels of the ecosystem. Predators who rely on mice as a food source, like owls and snakes, would find fewer prey available, which could lead to a decrease in their populations as well. Conversely, without mice consuming as much grain, the grain population might increase. However, other herbivores who also eat grains might proliferate, taking advantage of the increased food source and maintaining a balance. This hypothetical situation demonstrates the delicate balance of ecosystems and the potential cascading effects that can occur from changes at any level of the food web.Show the reciprocal cross: A red-eyed female (homozygous) and a white-eyed male. How many offspring will have white eyes and what is their sex?
When we see the reciprocal cross between a red-eyed female (homozygous) and a white-eyed male,we observe that none of the offspring will have white eyes. Additionally, the sex of the offspring will be half male and half female since the ratio of males to females is 1:1.
The reciprocal cross for a red-eyed female (homozygous) and a white-eyed male can be shown as follows:Female (XrXr) x Male (XwY). Females have two X chromosomes and males have an X and a Y chromosome. Red eyes are dominant to white eyes; therefore, we use Xr to represent red eyes and Xw to represent white eyes.
The offspring are as follows:All F1 females are heterozygous (XrXw).All F1 males are hemizygous (XrY).The F1 generation will have red eyes since the dominant allele is present.
None of the F1 individuals will have white eyes as the recessive allele is not present in the F1 generation.
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Define what a chromosomal disorder is. What are the different types of chromosomal abnormalities?
How do chromosomal abnormalities arise? Do most individuals conceived with a chromosomal
abnormality survive? Why or why not? Using your best grammar, write 4-6 sentences.
Answer:
Chromosomal disorder is a condition caused by a change in the number or structure of chromosomes in a person's cells. Chromosomes are the structures in cells that carry genetic information in the form of DNA. Different types of chromosomal abnormalities can occur, including missing or extra chromosomes, rearranged chromosomes, and changes in the structure of individual chromosomes. These abnormalities can lead to a variety of health problems, including developmental delays, intellectual disability, and physical abnormalities.
Chromosomal abnormalities can arise in different ways, including errors in cell division during development or exposure to certain chemicals or radiation. Some chromosomal abnormalities are inherited from a parent, while others occur spontaneously during the formation of reproductive cells or early development.
The prognosis for individuals with a chromosomal abnormality depends on the specific type of abnormality and the severity of associated health problems. Some individuals with chromosomal abnormalities can lead relatively normal lives, while others may have significant developmental or health issues that require ongoing care. The survival rate for individuals with chromosomal abnormalities varies widely, but advances in medical care and technology have improved outcomes for many affected individuals. Hope this helps.
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A student suggest that all of earth's changes happen very quickly. Which term best describes this claim?
A. Fossilization
B. Catastrophism
C. Uniformitarianism
D. Superposition
Answer:
B. Catastrophism
Explanation:
Catastrophism is the theory that states that the Earth was mostly shaped by very sudden effects. These sudden and short-lived events would occur worldwide in scope and change the Earth rapidly. This is in contrast to uniformitarianism that states that slow incremental changes made the Earth like it is today. Changes like erosion.
Answer:
The answer is B
Explanation:
I took the quiz
Giant sequoias can grow to be nearly 100 meters (328 feet) tall. They rely on a complex transport system to allow
water to travel from the roots to the leaves at the top of the tree.
Which transport tissue allows water to travel upward from the roots to the leaves?
Enter your answer in the box.
The transported tissue that allows water to travel upward from the roots to the leaves is the xylem tissue in vascular plants such as in this case giant sequoia.
What is the function of the xylem tissue in trees and vascular plants?The function of the xylem tissue in trees and vascular plants is to transport water and dissolved solutes from the roots to the upper organs, i.e., the shoot and leaves.
Therefore, with this data, we can see that function of the xylem tissue in trees and vascular plants is based on water transport.
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2. Which is true of the human circulatory
system?
A It transports oxygen and nutrients.
B It makes blood cells.
C It breaks down food and releases nutrients.
D It is the first line of defense against pathogens.
Answer: B
Explanation:
The circulatory system includes the heart, veins, arterioles, etc.. Includes blood as well
why bone grow in bidirectional
Explanation:
Bones grow in different directions because they need to support the body in different ways. The different directions allow for flexibility and strength.
describe how root hairs absorb nitrate ions from soils with low nitrate concentrations?
Answer:
Roots have specialized cells called root hair cells that are responsible for absorbing water and mineral ions like nitrates from the soil. These cells have long thin projections that stick out into the soil.
For plants to take up mineral ions, ions are moved into root hairs, where they are in a higher concentration than in the dilute solutions in the soil. This movement of ions from a low concentration in the soil to a higher concentration in the plant is achieved through a process called active transport. Active transport is a process that is required to move molecules against a concentration gradient. This means that substances are moved from a low concentration to a high concentration, which is the opposite of what would happen naturally. The process requires energy.
In the case of root hair cells absorbing nitrate ions from soils with low nitrate concentrations, active transport allows the plant to take in the ions it needs from the soil around it. The energy required for this process is produced by respiration.
Is there DNA in oreos?
Answer:yes
Explanation:
Who do you believe is guilty of the murder? What evidence supports your conclusions? (4 points)
Right from time immemorial, guilty is considered a murder situation in as much as one as been confirmed truthfully responsible as what one as been charged of.
What is murder?This is a deliberate act of killing another being, especially human.This is a crime against humanity and it is punishable.
Guilty means to be responsible for a dishonest act especially judged to have committed a crime.
Evidence which shows that guilty is a murder is simply in the scriptural books such as the Bible and Qur'an. The judge in his book too has whatever one is guilty of as a murder in his book.
So therefore, right from time immemorial, guilty is considered a murder situation in as much as one as been confirmed truthfully responsible as what one as been charged of.
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Answer:
Steve O'Hare
Blood Type Match
Explanation:
The murderer was the boss, Steve O'Hare, because the blood on the door matched his blood, so he possibly struggled to kill her and she was able to hit him or try to defend herself which is possibly why his blood was on the door
why RNA chain is always transcribed on 3' to 5' template strand ?
Explanation:
RNA growth is always in the 5′ → 3′ direction: in other words, nucleotides are always added at a 3′ growing tip, . Because of the ANTIPARALLEL nature of the nucleotide pairing, the fact that RNA is synthesized 5′ → 3′ means that the template strand must be oriented 3′ → 5′.
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Which of the following is NOT one of the four most common elements found in food?
a. nitrogen
b. carbon
c. oxygen
d. sodium
Answer:
Caebon
Explanation:
Carbon is not found in food
Which of the following is an example of diffusion?
A water freezing into ice
B sugar dissolving in a glass of water
C rain falling from the sky
D a stone sinking to the bottom of a lake
Explain how enzymes assist the process of absorption.
Enzymes play a crucial role in the process of absorption by breaking down large molecules of food into smaller, more easily absorbable molecules.
In the digestive system, enzymes are produced by specialized cells and secreted into various parts of the digestive tract. For example, enzymes such as amylase and lipase are secreted into the mouth and small intestine, respectively, to break down carbohydrates and fats.
Once the food molecules are broken down into their smaller components, they can be more easily absorbed through the walls of the digestive tract and into the bloodstream. Enzymes also help to facilitate the movement of these molecules across the cell membrane and into the cells of the body, where they can be used for energy or stored for later use.
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A giant redwood tree captures sunlight with its leaves and uses that energy to create sugars to fuel cellular p Which characteristic of life does this trait best represent? O metabolism O response O growth and development O cellular organiz
Answer:
photosynthesis