The oxygen released in photosynthesis comes
from
a. carbon dioxide.
b. glucose.
c. water.
d. ATP.
e. NADPH
C
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The maximum number of bonds that can be formed by an atom:
A. is dependent on the valence of that atom. B. is dependent on the number of unpaired electrons in its outer shell. C. can be made up of a combination of single and double bonds. D. is atom specific; for example, carbon can form four bonds, whereas oxygen forms two. E. All of these choices are correct.
Predators of Daphnia emit chemicals into the water that cause Daphnia to ________
a. develop pointed heads b. spend more time in hiding c. produce toxins d. reproduce at an earlier stage of development
The chloroplast is a membrane-bound organelle that is surrounded by an outer membrane. Aside from the outer membrane of the chloroplast, how many other types of membranes can be found inside the chloroplast?
A. zero B. one C. two D. three E. four
After consuming an antacid like Rolaids, ________.
A. HCl production would decrease B. the stomach would absorb water C. the pH of the stomach fluid would decrease D. the pH of the stomach fluid would increase