Answer:
increase the absorption of nutrients from digested food.
Explanation:
MICROVILLI are structures found on the surface of body organs such as small intestine. They help the small intestine mainly to perform its absorptive function. In other words, microvilli increase the absorption of nutrients from digested food.
Microvilli aid in this absorptive function by increasing the surface area of the small intestine and hence, allow more nutrients to be absorbed from digested food.
Question 2
What is the system of classifying levels of organization from least complex to most complex?
The ______ system plays the key role in allowing organisms to have offspring and pass on their unique genetic information.
A.
cardiovascular
B.
musculoskeletal
C.
nervous
D.
reproductive
what type of bond is formed when oxygen combines with hydrogen to form water
A. Ionic
B. Peptide
C. Hydrogen
D. Polar Covalent
E. Nonpolar Convalent
Answer:
Option D is the correct answer of this question
A student collected samples of cells from a woody plant during the spring and produced the drawings below. Sample 1 was collected from the woody stem of the plant. Sample 2 was collected from the root tip of the plant. Cells in different steps of mitosis are labeled with letters A, B, C, D, and E in Sample 2. Describe the role of mitosis in the growth of a plant.
The provided question is incomplete, however, the question asked is a very generalized question, answering it on the knowledge of mitosis.
Answer:
The correct answer is - mitosis has a great role in the growth of plants.
Explanation:
Mitosis is a type of cell division that occurs in the somatic cells of an organism. During mitosis, a parent cell divides into two daughter cells with the same number of chromosomes. There are no recombination takes place. This type of cell division is fast.
Mitosis occurs during asexual reproduction in the form of budding, propagation as well as repairing of the cells as they are fast, such as the regeneration of new cells. The growth of plants and development is dependent on mitosis as they produce cells more efficiently and fast and mitosis is the only cell division found in somatic cells.
During the Human Genome Project, scientists learned that most of the human genomes
A. does not code for proteins
B. is located on sex chromosomes
C. is not inherited
D. codes for proteins
Answer:
a
Explanation:
does not code for proteins (
juss guessed)
What term means "to come after"?
Answer:
"pursue or hunt down someone."
Explanation:
Hope this helps. ^_^
Breathing heavily after running a race is your body's way of *
a. restarting glycolysis.
b. recharging the electron transport chain.
c. repaying an oxygen debt.
d. making more citric acid.
Answer:
The correct option is C.
repaying an oxygen debt.
Explanation:
This is because while running, humans breath shallowly which could not provide the oxygen requirement for the respiratory system and fit in for blood need.
After running, you tend to breathe heavily because your muscle work very hard , the body use more oxygen and produced more carbondioxide, therefore the lungs and respiratory system must try to provide more oxygen to the blood. sympathetic nerves stimulate respiratory muscles
so as to increase the rate at which we breathe.
if you were given a specimen of an active motile microorganisms which is the type microscope would be most effective in visualizing
the live microbes
Answer:
D. phase-contrast microscopy
Explanation:
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Also here's the link for all your answers ;)
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http://www.tusculum.edu/faculty/home/ivanlare/html/microbiology/answer.html#08
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For a specimen of an active motile microorganism, the most effective microscope for visualization would be the phase contrast microscope.
The phase contrast microscopy is a technique designed to make images of live, colorless, and transparent microbes visible by enhancing the contrast. Most light microscope requires that microbes are killed and stained before they can be visible. The phase contrast technique uses optical mechanism such that any slight variation in the phase of the organism leads to a change in amplitude and can be seen in the contrast of its image under the microscope.In summary, the phase contrast microscope would be the most effective microscope to use when a live microbe specimen is in question due to the fact that it would use a phase change to create an enhanced image without having to kill or stain the microbe.
More on the different microscopy techniques can be found here: https://brainly.com/question/5912362
Describe how random mutation in an individual can result in a new adaptation in a population? pls help TwT
Answer:
See below
Explanation:
If a random mutation results in an increase in fitness (provides an advantage in survival/reproduction), thorugh natural selection, the mutation and its corresponding trait will become more prevalent. Those individuals with the advantage will be able to outcompete those without it in a limited-resource environment.
This tutorial will take you step by step through the question. Individuals with the genotypes Aa Bb CC Dd and Aa bb Cc Dd are crossed. Alleles of these four genes assort independently of one another. Now you can use the step by step method to answer this challenging question. Give the proportion of the progeny of this cross that are expected to have each of the following genotypes. Please answer as a decimal.
a) Aa Bb Cc Dd
Number
b) aa bb CC DD
Number
c) Aa bb Cc DD
Number
Answer:
The correct answer is -
a) 1/16
b) 1/64
c) 1/32
Explanation:
According to the law of independent assortment, each allele of a particular gene has equal chances of getting inherited into the gametes.
In a Mendelian cross of Aa x Aa would give;
AA = 1/4,
Aa = 2/4 and
aa = 1/4
The result of the cross between AaBb x AaBb would be 1/16 due to the fact that probability is still the same AA = 1/4, BB = 1/4 therefore, AABB = 1/16 = 1/4× 1/4.
Now based on this crossing the following:
AaBbCCDd x AabbCcDd.
Take each allele as individual
Aa x Aa would give; AA = 1/4, Aa = 2/4 and aa = 1/4
Bb x bb would give; BB = 1/2, bb = 1/2
CC x Cc would give; CC = 1/2, Cc = 1/2
Dd x Dd would give; DD = 1/4, Dd = 2/4 and dd = 1/4
Then the probability of progeny of the following would be:
a) the probability of AaBbCcDd = 2/4 x 1/2 x 1/2 x 2/4 = 1/16
b) the probability of aabbCCdd = 1/4 x 1/2 x 1/2 x 1/4 = 1/64
c) the probability of AabbCcDD = 2/4 x 1/2 x 1/2 x 1/4 = 1/32
Why are phospholipids of the plasma membrane oriented such that their heads are at the membrane surfaces and their tails are buried in the interior of the membrane?
Answer:
The plasma membrane is semi-permeable. The reason for this is because of the orientation of the phospholipids. The heads at the surface are hydrophilic so they face the water. The tails are hydrophobic so they face away from the water.
Explanation:
The phospholipids of the plasma membrane are oriented such that their heads are at the membrane surfaces and their tails are buried in the interior of the membrane - due to the fact that phospholipids have hydrophobic tails and hydrophilic heads.
Phospholipids consist of fatty acids and alcohol in the plasma membrane are arranged in two layers, known as the phospholipid bilayer. It has a hydrophobic or water-hating tail and a hydrophilic or water-loving head.
it has a head and two tails.As the tails are hydrophobic so, face the inside, away from the water.As the heads are hydrophilic so face outwardHeads are towards intracellular and extracellular fluid.Tails are meet the inner layerThus, the correct answer is - due to two layers of hydrophobic tails and hydrophilic heads.
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Multiple Select Question
Select all that apply
Which three of the following describe the autonomic nervous system?
Multiple select question.
Subdivision of the peripheral nervous system
Subdivision of the central nervous system
Controls skeletal muscles
Controls smooth and cardiac muscle
Effectors are under involuntary control
Effectors are under voluntary control
Answer:
Subdivision of the peripheral nervous systemControls smooth and cardiac muscleEffectors are under involuntary controlExplanation:
The Autonomic nervous system is a subdivision of the Peripheral nervous system and it is in charge of the involuntary processes in the body such as blood pressure, respiration and the heart rate. As such, its effectors are under involuntary control.
The Autonomic nervous system controls the smooth and cardiac muscles in the body as well as the glands. This is where it earns its other name, the Visceral nervous system.
There are two alleles and 3 genotypes for the C gene locus (incomplete dominance). Individuals with different genotypes vary in their relative fitness. If the relative fitness of C1C1 individuals is 1.0, the relative fitness of C1C2 individuals is 0.9, and the relative fitness of C2C2 individuals is 0.8, which of these should result in future generations
The given question lack the choices of result that might come, however, the choices related to this question is as follows:
A. frequency of C1 will increase
B. frequency of C2 will increase
C. frequency of heterozygotes C1C2 will increase
D. frequency of both same alleles will increase
E. not enough information provided to predict
Answer:
The correct answer is - option A. Frequency of C1 will increase.
Explanation:
In incomplete dominance, the relative fitness of heterzygous cases place always in between the other two allele genotype cases. In the given question, the relative fitness of C1C2 individuals is 0.9 between the relative fitness of C1C1 individuals is 1.0 and the relative fitness of C2C2 individuals is 0.8.
It is because there is no barrier to increasing the fitness of the more fit allele. The result of this is an increase in the fit alleles which is C1 here to reach equilibrium in the population.
Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic instructions for the development and function of living things. All known cellular life and some viruses contain DNA. ... The major function of DNA is to encode the sequence of amino acid residues in proteins, using the genetic code.
Answer:
The answer is in the explanation bellow
Explanation:
Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic instructions for the development and function of living things. All known cellular life and some viruses contain DNA. The main role of DNA in the cell is the long-term storage of information.
What are the environmental impacts of deforestation? What is the big deal with cutting down trees, can the forest just be replanted (environmental)
Answer:
The impact of cutting trees is the fact that they release carbon dioxide into the air when they are cut down. Some other imparts are less clean air, animals like squirrels without homes and many others
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Why did you not see any chloroplasts in the onion epidermal cells, unlike in the Elodea (Anacharis) cells?
-Chloroplasts in onion cells are hidden by the large central vacuole.
-The part of the onion viewed under the microscope grows underground.
-The purpose of chloroplasts is to make the plant green but onions are not green.
-Chloroplasts are organelles that absorb sunlight energy and perform photosynthesis.
-Plant parts that grow underground are not exposed to sunlight.
-Onions had chloroplasts before they were picked from the ground but the chloroplasts dried up and disappeared after being exposed to the sunlight.
-Onions are not plants and therefore do not have chloroplasts.
-Plant parts that are not exposed to sunlight cannot do photosynthesis.
Collagen diseases are a group of human diseases in which the production of collagen throughout the body becomes impaired. Some examples of collagen diseases include systemic lupus erythematosus (SLE or lupus), rickets, and osteogenesis imperfecta. Explain why these diseases often affect the entire body. Hint: Consider the distribution of connective tissue throughout the body.
Answer:
Explanation:
Collagen vascular disease is group of disease that affects the connective tissue.
Collagen is a protein based connective tissue that includes collagen and Elastin.
Collagen is found in the tendons, ligaments, skin, cornea, cartilage, bone and blood vessels while Elastin is a stretchy and formed the major component of ligaments and skin. This connective tissue holds, protect and connect and bind various body structures together both bones, ligaments, and muscles together. When a patient then has a connective tissue disease, the collagen is affected, the elastin are inflamed and every structure connected to the proteins in the body parts are harmed.
Explain why, throughout the history of life on Earth, living beings have been different?
Draw a line to connect the following terms to their definitions. PLZ HURRY!
A region that has a specific climate and a specific community of plants and animals = biome
A region with low average temperatures and little precipitation = taiga
Long-term temperature and precipitation patterns in a region = climate
The _______ division of the skeleton consists of the upper and lower extremities; the_____ division of the skeleton is comprised of the skull, vertebral column, sternum and ribs.
Explanation:
The axial skeleton forms the vertical axis of the body and includes the bones of the head, neck, back, and chest of the body. It consists of 80 bones that include the skull, vertebral column, and thoracic cage. The appendicular skeleton consists of 126 bones and includes all bones of the upper and lower limbs.
I hope it helps
Several years later, aided by the research of Rosalind Franklin, biochemists James Watson and Francis
Crick developed the double-helix model of DNA shown in the image to the right. The structure labeled X in
the figure can best be described as a(n)
A. RNA strand
B. Nucleotide monomer
C. Sugar-phosphate backbone
D. Nitrogenous base
Answer:
RNA i Think
Explanation:
We're no strangers to love
You know the rules and so do I
A full commitment's what I'm thinking of
You wouldn't get this from any other guy
I just wanna tell you how I'm feeling
Gotta make you understand
Never gonna give you up
Never gonna let you down
Never gonna run around and desert you
Never gonna make you cry
Never gonna say goodbye
Never gonna tell a lie and hurt you
We've known each other for so long
Your heart's been aching but you're too shy to say it
Inside we both know what's been going on
We know the game and we're gonna play it
And if you ask me how I'm feeling
Don't tell me you're too blind to see
Never gonna give you up
Never gonna let you down
Never gonna run around and desert you
Never gonna make you cry
Never gonna say goodbye
Never gonna tell a lie and hurt you
No, I'm never gonna give you up
No, I'm never gonna let you down
No, I'll never run around and hurt you
Never, ever desert you
We've known each other for so long
Your heart's been aching but
Never gonna give you up
Never gonna let you down
Never gonna run around and desert you
Never gonna make you cry
Never gonna say goodbye
Never gonna tell a lie and hurt you
No, I'm never gonna give you up
No, I'm never gonna let you down
No, I'll never run around and hurt you
I'll never, ever desert you
The pulse pressure is .
Answer:
Advertisement. The top number (systolic) minus the bottom number (diastolic) gives you your pulse pressure. For example, if your resting blood pressure is 120/80 millimeters of mercury (mm Hg), your pulse pressure is 40 — which is considered a normal and healthy pulse pressure.Which of the following is not an example of a protist?
Paramecium
Kelp
Snail
Algae
A snail IS NOT an example of a protist. Protists are unicellular organisms, whereas snails are pluricellular organisms (i.e., snails are animals).
A protist is a broad category of eukaryotic organisms that are not animals, plants, or fungi.
The features of protists include:
Unicellular (i.e., they contain a nucleus)Presence of mitochondria.They can be parasitic microorganisms They prefer aquatic/moist environments.Protists include Protozoa (animal-like heterotrophic organisms), Protophyta (plant-like autotrophic organisms) and Molds (fungi-like organisms).
In conclusion, a snail IS NOT an example of a protist. Protists are unicellular organisms, whereas snails are pluricellular organisms (i.e., snails are animals).
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Paheli would like to suggest that containers used for the storage of poisonous materials should be recycled separately, such that recycled plastic is not used to make plastic bags. do you agree with this why
Answer:
Yes, I agree
Explanation:
This is because these storage containers and plastic contain some poisonous chemicals which are dangerous or harmful to living organisms and the environment.
When these chemicals get into the human bodies, they can cause health hazards and when they are washed into the aquatic bodies they can kill aquatic lives. Even if these chemicals are washed in animals drinking water, they can affect the animals negatively.
What is partially responsible for descent with
modification?
SELECT ALL THAT APPLY
Random mutations
Crossing over during prophase 1
Asexual reproduction
Cloning
Independent assortment during metaphase !
Answer: random mutations
Charged atoms and molecules must use a ___________________ to cross through the plasma membrane.
Answer: protein
Explanation:
Had the exact question!
The _______
are the primary cell type found in hyaline cartilage tissue.
Select all that apply
Neuroglia perform the functions of _____.
release of neurotransmitter
insulation of nerve cells
conduction of impulses
protection of neurons
Neuroglia performs the functions of insulation of nerve cells and protection of neurons. The correct option is B and D.
What is Neuroglia?Neuroglia is a type of cell that's the main function is to provide metabolic, physiological, and developmental support to the neurons. They are also called glial, or nerve glue.
Neuroglia is the cells to protect the neurons, provide them insulation and support them.
Thus, the correct options are B, insulation of nerve cells, and D, protection of neurons.
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What does this experiment indicate about enzyme specificity?
Answer:
wut experiment?
Explanation:
Which factor helps determine the fertility rate of a group of people?
A. Access to medicine
B. Death rate
C. Farmland
D. Consumption rate
SUBMIT