Answer:
air and water environments
Explanation:
A: Tides are driven by the gravitational pull off the sun and moon.
That is the answer. I'm sure
Answer: Starches and sugar
Explanation:
Answer:
Environmental exposure to certain chemicals, ultraviolet radiation, or other external factors can also cause DNA to change. These external agents of genetic change are called mutagens.
<span>After a zygote undergoes cleavage division it is called a blastula. A blastula is a </span><span>spherical ball of cells that is created by cleaving the zygote.</span>
