Answer:
hii
Diffusion is the movement of molecules from an area of high concentration to an area of lower concentration. There are different types of diffusion: simple in which the molecule passes directly through the phospholipid bilayer and facilitated which uses the integral membrane proteins as channels.
The simplest type of cell transport is diffusion, in which molecules move from an area of high concentration to an area of low concentration. Diffusion does not use ATP, so it is called passive transport.
The movement of a solute from an area of low concentration to an area of high concentration requires ATP usage by carrier proteins. This form of transport is referred to as active transport.
What is Active transport?Active transport may be defined as a type of transport that occurs against the concentration gradient which is mediated by the carrier proteins.
Metabolic energy in form ATP is required to move ions or molecules against the concentration gradient. This type of transport significantly results in the accumulation of solute one one side of the membrane.
While passive transport does not required any form of metabilic energy to facilitate the migration of ions or molecules. It occurs along the concentration gradient.
Therefore, the processes of active and passive transports are well described above.
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Which term best describes receptors that detect body and limb movements, skeletal muscle contraction and stretch, and joint capsule structure?
Proprioceptors are known as receptors which help to detect body and limb
movements, skeletal muscle contraction etc.
These receptors are present in the subcutaneous tissue of the skin which is
the organ responsible for feeling and touch sensations. Proprioceptors help
to detect body and limb movements, skeletal muscle contraction and stretch, and joint capsule structure
In pregnant women, proprioceptors help to relay information to the brain
when a part of the body is moving. This is why it's the right choice.
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Smaug tells Bilbo he doesn't like
Question 2 options:
dwarves
hobbits
men
Answer:
dwarves
Explanation:
The cells ___ into forms that they can use
to grown and reproduce
Answer:
Organisms
Explanation:
When does cytokinesis occur?
A. G₁
B. S
C. G₂
D. M
Answer:
Cytokinesis occurs in D M
Why is the California Floristic Province unique compared to other biodiversity hotspots around the world?
Answer:
Plants. Like other Mediterranean-type ecosystems, the California Floristic Province is distinguished more by the endemism of its plants than its animals. Of nearly 3,500 species of vascular plants in the hotspot, more than 61 percent are found nowhere else in the world. About 52 plant genera are also endemic.
Explanation:
Joint and bone pain, fever, weight loss, fatigue, weakness, hepatomegaly, splenomegaly and enlarged lymph glands are typical symptoms of leukemia. True False
Answer:
True.
Explanation:
White blood cells cannot function properly and their reduced production can lead to fever and frequent infections. This is because the function of white blood cells in fighting germs has been disrupted.
Other signs and symptoms:
- Weak and tired.
- Lack of appetite and weight loss.
- Swelling and bleeding gums.
- Headache.
- Abdominal swelling is caused by enlargement of the liver and lymph.
- Bone pain, can cause weakness.
Joint pain.
- The glands are swollen. If the glands in the neck and chest are swollen, it can cause blood flow to be blocked. This causes the face to swell, difficulty breathing and snoring.
#If i'm wrong, i'm sorry
Suppose a father of blood type A and a mother of blood type B have a child of type O. Is this possible? If they have more children, what could their blood types be?
Answer:
no it can't be possible (but it depends if the fathers blood group is AA not AO and the mother's group is BB not BO) otherwise it can't be possible
Explanation:
blood group O is recessive so both parents must have this type of blood group or at least one of them to have an offspring with this blood group
if they had more children they'd have blood groups A,B or AB
what is the difference between insight and cultural behavior
Heavy elements like gold (Au) and iron (Fe) are formed in what type of stars ?
Answer:
During a supernova, the star releases very large amounts of energy as well as neutrons, which allows elements heavier than iron, such as uranium and gold, to be produced. In the supernova explosion, all of these elements are expelled out into space.
Explanation:
If you know that a DNA double helix consists of 20 % adenine, what percentage of the DNA double helix is guanine (G)
Answer:
80%
Explanation:
As per rules the percentage of adenine is equal to thymine and C is equal to G. If A is 20 then the value of T is 20 too and along with that C and G are equal. The value of G is 30%.
What type of bonding is present between adenine and thymine ?Hydrogen bonding is present between the bases where the two hydrogen bonds are present in between A and T. C and G are binding together by three hydrogen bonds.
Adenine is 20% that means thymine is equal to 20% as well where the remaining percentage out from 100 % is 60% where the value if cytosine and guanine are equal and the percentage they have is 30% and 30% that is guanine is 30%.
DNA always in the structure has adenine residues equal to thymine residues and cytosine residues equal to guanine residues thus the value of their composition in the structure can be predicted by this.
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2. Explain how a gene pool and biological evolution are related.
3. How could a natural disaster result in genetic drift?
a
4. Explain what survival of the fittest means.
5. How does artificial selection provide evidence for evolution by natural selection?
Add moko adrian depla pre tytor
what property of rna enables some rna molecules to function as enzymes?
Answer:
Property 1. Some bases in RNA have functional groups.
Property 2. it has a 3-D structure because it has the ability to base pair with itself.
Property 3. RNA can hydrogen bond with other nucleic acid molecules.
RNA can act as an enzyme which is known as Ribozyme because of the presence of some properties such as the ability to form base pair with itself, presence of functional groups, etc.
What are Ribozymes?The ribozymes are the catalytic RNA molecules, which were first identified in the early 1980s. They show the intrinsic property of breaking and forming covalent bonds in the RNA molecules. In many ways, ribozymes can be compared to the protein enzymes which can catalyze the cleavage of peptide bonds in different proteins or peptide molecules.
The term ribozyme refers to the enzymatic activity of RNA and the ribonucleic acid nature of RNA at the same time. They can catalyze the formation of polypeptide molecules by decreasing the activation entropy of the reaction.
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So now this is an easy question.
[tex]{\huge{\underline{\small{\mathbb{\pink{REFER \ TO \ THE \ ATTACHMENT}}}}}}[/tex].
NOTE: Need perfect answers.
Option A and B are true because mitochondria have their own DNA known as mitochondrial DNA. Also, they make some of their own proteins because they have their own DNA and ribosomes. So they are also called semi-autonomous organelles.
They are not static because their structure changes every few seconds.
Hope it helps.
Do comment if you have any query.
Which process is used to generate energy in nuclear power plants?
a. Nuclear fusion
b. Peatification
c. Convection
d. Nuclear fission
Answer:
D. Nuclear FissionExplanation:
Nuclear energy originates from the splitting of uranium atoms – a process called fission. This generates heat to produce steam, which is used by a turbine generator to generate electricity.
Answer:
a. Nuclear fusion
Explanation:
Penn Foster/JMHS
Areas of the body with a high degree of sensory acuity (very sensitive) have _________ receptor fields.
Areas of the body with a high degree of sensory acuity (very sensitive) have SMALL receptor fields. It determines how accurately a stimulus can be located.
Sensory acuity indicates how accurately a given stimulus is located.
Sensory acuity depends on two major factors: the density of sensory receptors, and the size of receptive (neuronal) fields.
These receptors can respond to different stimuli such as, among others, temperature factors (i.e., thermoreceptor), chemical factors (i.e., chemoreceptor), pressure factors (i.e., mechanoreceptor), etc.
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Cells that are unique in their ability to form other cells are called stem cells and are commonly used in ____________ to create new cells and tissues for treating illnesses like diabetes and Parkinson disease.
Answer:
therapeutic cloning
Explanation:
Muscle fibers in the _____ enable it to increase or decrease the diameter of the pupil to allow more or less light to enter the eye.
Answer:
iris
Explanation:
Atmospheric carbon dioxide levels have been increasing from year to year. However, in locations in the
northern hemisphere, carbon dioxide levels may decrease slightly during the summer months. Which is
the MOST likely explanation for these slight summertime decreases?
(A) an increase in the rate of cellular respiration during the summer
(B) a decrease in the rate of cellular respiration during the summer
(C) an increase in the rate of photosynthesis during the summer
(D) an increase in the rate of nitrogen fixation during the summer
(E) an increase in the frequency of thunderstorms and hurricanes during the summer
Answer:
A
Explanation:
an increase in the rate of cellular respiration during the summer.
____________ glands secrete ____________ into the bloodstream to affect change in target cells a distance away.
Answer
The endocrine chemical substances
How are latitude and altitude similar and diffrent
Latitude is the distance north or south of the equator. Altitude is the height of an object above sea level. Latitude and altitude affect vegetation in similar ways.
Explanation:
4. What is X-Ray Crystallography?
the tree of life has been rearranged into three domains based on what evidence?
The tree of life has been rearranged into three domains based on DNA similarities. The linear order of nucleotides in DNA can be used to infer ancestry.
The three domains of the tree of life are Bacteria, Archaea and Eukarya.
Moreover, DNA is a double helix molecule composed of two long chains of nucleotides.
In DNA, there are four types of nucleotides, each containing one different nitrogenous base: Adenine, Guanine, Cytosine and Thymine.
The level of conservation observed in the linear order of nucleotides in the DNA molecule can be used to recognize homology caused by ancestry (i.e., homology in the nucleotide sequence) between different types of organisms.
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Can birth defects that are environmental be prevented?
Answer:
Most birth defects can't be prevented, but you can take some steps to reduce the likelihood of environmental effects. Remember to always discuss your concerns with your healthcare provider and follow their instructions regarding screening tests, medications, etc.
Explanation:
if an enzyme is completely denatured, it can still make some product.
True or False
Answer:
mark me brainliest
Explanation:
Enzymes work consistently until they are dissolved, or become denatured. When enzymes denature, they are no longer active and cannot function.Answer:
Explanation:
An enzyme is a biological protein molecule made up of thousands of amino acids. ... Enzymes work consistently until they are dissolved, or become denatured. When enzymes denature, they are no longer active and cannot function.
what three conditions are necessary for natural selection to occur
For the natural selection to occur, the basic rule is that species that fit the best are selected by nature to exist in the nature. The 3 conditions that are required by nature for natural selection to occur are :
1. Struggle for existence
2. Variation
3. Inheritance
What is natural selection ?The offspring that is fit for the nature following the adaptation to the variation and inheritance crossing the struggle for existence to occur in nature tends to be selected by the nature to exist and produce more offspring.
The organisms that are adapted to the nature following the mutations and variations that are required for the better adaptations live more than the species which has lesser adaptation. These species produce more offspring.
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After DNA replication is complete, there are two new DNA molecules, one molecule has both new strands, and the other molecule has both old strands. true or false
Answer:
False
Explanation:
In your own words, explain the difference between acoelomates and pseudocoelomates, giving an example of each.
tails face each other within the bilayer and form a region that
5. In a lipid bilayer, the
excludes water:
a. Hypertonic
b. Hydrophilic
C. Hydrophobic
d. Hypotonic
Answer:
F her where it counts
Explanation:
________ channels open or close in response to physical distortion of the membrane surface.
Answer:
mechanically-gated
Explanation:
why is gmo modification different for plants and animals
In animals, a gene is inserted into an embryo, modifying the genome to manufacture the product of this new gene. In plants, a gene is injected into a single cell that is grown from a seed into a plant. This plant expresses the new gene in all its cells. The difference between GM and selective breeding.
