Answer:
A. Falling raindrops are driven back up into the clouds by wind and freeze.
It means why did the population at first had a rapid increase and then changed to a more normal rate
Answer:
Left atrium
Explanation:
The four pulmonary veins return oxygenated blood to the left atrium.
D. The chromatin coils and condenses into visible chromosomes.
is the correct answer....
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Protein is made up of subunits and each subunit is made up of polypeptides molecules . Called Amino acids .
