One early piece of evidence supporting the cell theory was the observation that a. only plants are composed of cells. c. cells come from other cells.
b. only animals are composed of cells. d. animal cells come from plant cells.

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