What is the source of the oxygen released into the air as a product of photosynthesis?
a. chlorophyll
b. carbon dioxide only
c. water only
d. both water and carbon dioxide

What happens during interphase? (1)the nucleus grows to its full size. (2)the cell grows to its full size. (3)the nucleus divides into two nuclei. (4)the cell divides into two cells.

Which type of respiration takes place when there is no oxygen present

Which statement best describes how the loudness of the sound affects the high-pressure region created by the sound wave? a. a louder sound has no effect on the pressure created. b. a louder sound means a high-pressure region that is higher. c. a louder sound means a high-pressure region that is not as high.