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Yuki888 [10]
3 years ago
6

Which body system do animals use to eliminate waste, such as ammonia?

Biology
1 answer:
irinina [24]3 years ago
3 0
Excretory / Urinary system
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Explain how the VIH virus uses specific structures to enter the cell
Alona [7]

Answer:

When HIV infects a cell, it first attaches to and fuses with the host cell. Then the virus uses the host cell's machinery to convert the viral RNA into DNA and replicate itself. The new copies of HIV then leave the host cell and move on to infect other cells.

4 0
2 years ago
What is the function of a smooth muscle tissue? ​
spin [16.1K]

Answer:

Smooth muscle is found in the walls of hollow organs like your intestines and stomach. They work automatically without you being aware of them. Smooth muscles are involved in many 'housekeeping' functions of the body. The muscular walls of your intestines contract to push food through your body.

Explanation:

4 0
3 years ago
Please help me out with these practice questions.<br> Thank you!
Oduvanchick [21]

Answer:

1. B.

2. B.

3. A.

Explanation:

1. So, the mother does not but the father does carry the gene for polydactyly. Which means that, the offspring was born Pp and, the dominant trait (P) was exposed.

2. A heterozygous trait is one that has both allele forms (in this case, d and D. If both of the parents are Dd, the offspring will also be Dd, and therefore, he has 1/2 chance of being born deaf.

3. Both you and your spouse will be heterozygous (Ee), therefore, since unattached earlobes are dominant

3.1 When two heterozygous traits are bred, you will get the following combinations: yy, Yy, Yy and YY. Which means that your offspring had a 1/4 chance of having attached earlobes, and that is what happened.

3.2 The third option is incorrect, because when you breed 2 homozygous recessive (ee) traits, all of your offspring will be homozygous recessive (ee), which means that the parents would have to be homozygous recessive, but, they cannot since the dominant trait has applied to them.

4 0
3 years ago
On which cell types do antibodies exist as transmembrane proteins?
Kamila [148]
I believe that on the Naive B-cell the antibodies exist as transmembrane proteins. A naive b-cell is a type of b-cell that has not been exposed to an antigen. When exposed it becomes either a memory B cell or a plasma cell that secrete antibodies  specific to  the antigen that was originally bound. 
3 0
3 years ago
What will a hypothesis become if supported by repeated expermentation
Dovator [93]

Answer:

Answer: The correct answer is- Theory.

Hypothesis can be described as an assumption or proposition, which is made on the basis of certain evidences without knowing the real truth about it. It is tested further for investigation about the proposed explanation with the help of repeated experiments (using certain protocols).

When it becomes supported by repeated experimentation, it is converted into theory.

Thus, theory is the right answer.

7 0
3 years ago
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