With evolution as the core theme of biology, we can explain traits shared by organisms as evidence of and traits that differ among organisms as evidence of

The finches on the galapagos island were similar in form except for variations of their beaks. darwin observed that these variations were useful for: attracting a mate defending territory building nests gathering food

Nh3 +02-no + h20 is unbalanced what is the balanced equation

An animal cell (left) and a plant cell (right) are shown.which organelle, labeled x in the diagram, is found in both plant and animal cells?