Synthesis, as a good way to see synthesis would A + B = AB
Comparative anatomy is the study of the similarities and differences in the structures of different species. ... Homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor. These structures may or may not have the same function in the descendants.
Answer: I think it‘s 1, it just makes more sense. Sorry if I am wrong but hope this helps anyone.
Pretty sure its Ph scale i did a question like this once but i cant remember....its either Ph or richer
Directional selection I'm pretty sure hope it helps!
