Distribute blood through the body
It would be A, because a fossil forms after an animal dies, and hundreds to thousands of years of soil or sediment coversit's body, preserving it. :)
Answer:
a plasma membrane, also called a cell membrane, and cytoplasm.
Explanation:
DNA
Both dna and rna have four nitrogenous bases each three of which they share (cytosine adenine and guanine )
Living things in the environment such as plants, animals, and bacteria are biotic factors. Biotic factors also include once-living parts such as dead leaves on the forest floor. Abiotic factors are nonliving aspects of the environment such as sunlight, temperature and water. One important abiotic factor is soil.