Explain why a circulatory system is important in meet
the needs of all cells throughout an animal's body.

Cell specialization occurs by the process ofa. reproductionb. differentiationc. maturationd. growth

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

Need an answer asap 45 points and brainlest to the first person to answer why do scientific theories, such as biological and chemical evolution, represent the strongest explanation of the changes observed in the fossil record. must be in sentence form how can scientific theories on evolution and the fossil record change over time? must be in sentence form