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Afina-wow [57]
3 years ago
9

What is a thery that has been proven true over time and and never disproven called

Biology
1 answer:
DaniilM [7]3 years ago
8 0
That is a scientific Law


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How a mouse takes care of it's waste is by 

The small intestine absorbs the waste into the blood and that blood will be filtered by the kidneys.

H0P3 It H3LPS :)

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3 years ago
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some scientists believe that if __________ could be lengthened, age-related problems could be slowed.
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Answer:

Telomeres

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Telomeres are present at the ends of chromosomes and prevent the lose of genes. They shorten as a person ages. Thus lengthening them may slow down age related problem.

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A diploid somatic ("body") cell has 2n=20 chromosomes. At the end of mitosis, each daughter cell would have ______ chromosomes.
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Answer:

1. 20 chromosomes

2. 10 chromosomes

3. 10 chromosomes

Explanation:

1. The process of mitosis results in the two daughter cells from the same parental cell with exactly the same genetic material. Thus the two cells contain the same number of chromosomes as the parent cell. Therefore if a cell with 20 chromosomes undergoes mitosis will result in the 20 chromosomes.

2. During meiosis I two daughter cells are formed with different ploidy levels as the number of the chromosome reduces to half. Therefore the cell with 20 chromosomes results in two cells with 10 chromosomes.

3. During meiosis II, the two daughter cells formed from meiosis I result in the formation of two more daughter cells with an exact number of chromosome number that is 10 chromosomes.

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3 years ago
In a stage of the cell cycle, the cytoplasm of the cell divides to form two separate cells. Which stage of the
rjkz [21]

Answer: it's usually cytokinesis in plant is from centre to periphery while animal is viceversa

Growth 1

6 0
4 years ago
How do large molecules move across the plasma membrane
Elodia [21]

Answer:

The plasma membrane is selectively permeable

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hydrophobic molecules and small polar molecules can diffuse through the lipid layer, but ions and large polar molecules cannot. Integral membrane proteins enable ions and large polar molecules to pass through the membrane by passive or active transport.

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