Answer:
A chromosome is an organized package of DNA found in the nucleus of the cell. Humans have 23 pairs of chromosomes--22 pairs of numbered chromosomes, called autosomes, and one pair of sex chromosomes, X and Y.
Explanation:
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It falls to minus 387 degrees Fahrenheit <span />
Answer:
O proteins
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Answer:
d . different population of the same species physically separated from each other forming new species.
