The process of cellular respiration is performed only by organisms that are incapable of photosynthesis. is performed only by organisms that are incapable of photosynthesis. breaks down food molecules to release stored energy. breaks down food molecules to release stored energy. occurs before plants are able to continue photosynthesis. occurs before plants are able to continue photosynthesis. occurs only in animals. occurs only in animals.

Why are small quantities of chlorofluorocarbons so harmful to the ozone layer? a. the chlorofluorocarbons act like ultraviolet radiation causing large amount of ozone to be produced. b. the chlorine from the chlorofluorocarbons reacts with free molecules of oxygen causing a stop in ozone production c. free oxygen atoms can replace the chlorine in chlorine monoxide, releasing a free atom of chlorine which can then recombine with an oxygen atom in ozone, destroying more ozone. d. chlorofluorocarbons absorb ultraviolet radiation, preventing the formation of ozone select the best answer from the choices provided

Here's one way to follow the scientific method. place the missing steps in the correct position in the process.

Which of the following is a common response to cell signaling?