Pretty sure it's A! Hope that helps!
Adenine
Guanine
Cytosine
Thymine
Nitrogenous bases
The answer is diversification. The populace segment of an animal varieties' specialty relates to the conveyance of people crosswise over situations inside an area. As developmental clades of species expand, they apparently fill specialty space, and, thus, the rate of increment in species numbers moderates.
Answer:
false ig because animal cell is not complex(i am not sure)
Answer:
round worms reproduce sexually
the nervous system of a roundworm contains a brain and nerve cords