Which of these processes produces the most oxygen ? a)cellular respiration b)breakdown of organic matter c)normal breathing process of many animals d)photosynthesis in plants

Which of the following describes a boom period? a. as one population increases, another population decreases. b. as one population increases, the other population also increases. c. as one population decreases, another population increases. d. as one population decreases, another population also decreases

What type of organism is a one-celled organism that functions as a single unit? a. bi-celled b. single-celled c. pre-celled d. multi-celled

Diffusion and osmosis are forms of passive transport