circulatory
The lungs and respiratory system work closely with the circulatory system to make sure oxygen reaches all the cells of our body.
<span>A zygote begins as a one-cell structure that is created when a sperm and egg merge.
In the embryonic development of people and different creatures, the zygote arrange is brief and is trailed by cleavage, when the single cell moves toward becoming subdivided into smaller cells. we can also define zygote as a cell that is formed when two gametes meet.
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Answer:
To help ribosomes make proteins
<span>in the summer, the permafrost thaws and makes the ground soggy.</span>
You have no choices however, A gene pool is defined as a sum total of all the genes present in an inter-breeding population at a specific time. It includes all the alleles of all the loci within the genes of a interbreeding population or species. The composition of the gene pool of a population can change with course of a time due to evolution