Although water is considered a renewable resource, what is a reason why it might be more like a nonrenewable resource?
a. water resources are not evenly distributed around the world
b. water can be used up faster than it can be returned in the water cycle
c. water can be polluted, depleting the supply of fresh water
d. b and c
e. all of the above
Answer: d. b and c
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If you observed them in the following solutions, at which sucrose concentration (in millimolars, mM) would you expect the contractile vacuole to be most active? A) 0.0 mM sucrose B) 0.05 mM saline C) 0.08 mM sucrose D) 1.0 mM saline
The area indicated by “A” in the figure represents
a. sunlight energy in the environment. b. heat energy in the environment. c. electrical energy in the environment. d. ionizing radiation in the environment. e. the explosion of the hydrogen gas to release energy for the reactions.
The organelle that "packages" and "ships" proteins for transport within and out of the cell is the
a. ribosome. b. lysosome. c. nucleolus. d. Golgi body. e. peroxisome.
Which of the following statements about the late follicular phase in the female reproductive cycle is false?
a) The rise in estrogen inhibits the release of GnRH, LH, and FSH b) The follicle responds to LH because of the presence of FSH induced LH receptors c) Takes place during the proliferative phase of the uterine cycle d) The follicle ruptures at the end of the late follicular phase e) Both a and c are false.