Currently, the most serious drug problem on
campuses is
a. methamphetamine addiction.
b. cocaine addiction.
c. marijuana addiction.
d. codeine addiction.
e. binge drinking.
Answer: e
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The female reproductive whorl of a flower typically consists of one or more
a. petals. b. carpels. c. stamens. d. receptacles. e. sepals.
If the number of chromosomes in an animal's gametes is 20, then a somatic cell from that animal
would contain ____ chromosomes.
a. 5 b. 10 c. 20 d. 40 e. 80
Why is external water not essential for fertilization in seed plants?
A. Ovules are contained within the pollen. B. Pollen grains are transported by wind or an animal. C. Sperm cells are used to transport pollen to the archegonia. D. The sperm cells in seed plants are capable of resisting desiccation. E. Seed plants use pollen instead of sperm for fertilization.
Which hormone causes glucose release and, consequently, a rise in the concentration of sugar in the blood?
A) insulin B) glucagon C) calcitonin D) oxytocin