How does female and male reproductive anatomy and physiology reflect these tasks?

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

What is the one part of the nucleotide  that differs among the other different nucle  tides?

What type of cell division is used to replace old cell?