Answer - Well to put it in short terms.
Cells such as water cells or aquatic microorganisms need and required to have a large surface area increased. Because this helps them stay afloat without spending much amount of energy to float.
Crossing-over is the exchange of genetic material between homologous chromosomes. It results in new combinations of genes on each chromosome. When cells divide during meiosis, homologous chromosomes are randomly distributed to daughter cells, and different chromosomes segregate independently of each other.
Answer:
Lack of food, increase in predators, lack of space, too much competition within the population, lack of water
Explanation:
<span>Lithosphere, I know this because I got it right on usatestprep</span>
The answer should be d, they are in domain eukarya so their cells are eukaryotic.