Most divisions of plant life are represented in the fossil record from the triassic period onward. true or false

Which statement is true about the cell theory? a) it is well-supported by evidence. b) it is unchangeable and permanent.

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?

What factors contribute to the effect an environmental toxin has on the human body?