Which of the following statements is CORRECT about diffusion? It is very rapid over long distances
It requires an expenditure of energy by the cell
It is a passive process
It occurs when molecules move from a region of lower concentration to a region of higher concentration

Which of the following is the best definition for the process of photosynthesis? a.) plants digest sugars to make energy. b.) plants use oxygen and glucose to make carbon dioxide. c.) plants use sunlight and carbon dioxide to make sugars. d.) plants use sunlight to make chlorophyll and chloroplasts.

20. in humans, freckles are dominant to no freckles. trey has no freckles and his wife anna grace has freckles, but her dad doesn't. they want to know what percentage of their kids would look like trey. show a punnett square to support your answer.

Wich level of organization includes all the other levels or organizations