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kodGreya [7K]
3 years ago
12

Humans have how many chromosome pairs

Biology
1 answer:
geniusboy [140]3 years ago
4 0

Answer:

23 pairs

Explanation:

Humans normally have 23 pairs of chromosomes, which equals 46 (23 pairs, 23*2=46) total chromosomes. 22 of the pairs are autosomes. They store the genes. The other pair is the sex chromosomes. They decide whether the person is male or female.

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To answer this question we need to analyze each available option:

A. An angiogram. Is a procedure used to obtain x-ray images showing blood vessels of the heart as well as blood flux. So this is the correct answer.

B. Electroencephalogram. This is a study of the cerebral function based on its electric activity. So this cannot be.

C. Amniocentesis. Refers to a pregnancy test to diagnose genetic disorders in a fetus, using amniotic fluid, so this cannot be either.

D.. An echogram, which refers to an image created by sound waves of high energy, is an ultrasound so this cannot be.

6 0
1 year ago
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Answer:

they help to remove carbon dioxide through calcification

Explanation:

The correct answer would be that <u>they help to remove carbon dioxide through calcification</u>

<em>Shell-building marine creatures play important roles in regulating climate because they help to remove carbon dioxide from the environment through the process of calcification.</em>

Carbon dioxide is a major driver of climate change because the gas is among the greenhouse gases that absorb radiation from the sun thereby causing the warming of the planet. The more the carbon dioxide in the atmosphere, the more the amount of heat trapped and the more the increase in the global temperature. An increase in the global temperature causes the general climatic factors to become erratic.

Hence, the removal of carbon dioxide through the process of calcification is important for regulating climate change.

8 0
3 years ago
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