<span>although the models of genetic drift predicts the genetic diversity.
I put this in and got 100% for the question ^^</span>
An animal without the body cavity is called acoelomic. .......
Option (A) identifies them correctly.
During Meosis 2 daughter cells are formed from a single cell and the chromosomes are equally divided in both the cells.
So, Cell P had 60 chromosome, after miosis 2 daughter cells of each having 30 chromosomes formed, and again after Miosis of from each of those 2 those daughter cells, 2 more daughter cells are formed with equal naumber of chtomosome which equals 15.
B, hormones that serve as chemical messengers im not 100% sure though