Which of the following is a characteristic of dead zones?
a. depletion of normal flora and fauna
b. corrosion caused by acid rain
c. excessive amounts of hydrogen sulfide
d. unnatural uplifting of ocean sediments
a. depletion of normal flora and fauna
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What occurs during stage two of labor?
a. The cervix thins. b. The cervix dilates. c. The baby is expelled from the uterus. d. The placenta is expelled from the uterus.
The cells least affected by Luft's Syndrome are
a. skeletal muscle cells. b. heart muscle cells. c. brain cells. d. body cells with high energy needs. e. reproductive cells.
After embryonic development, members of the phylum Rotifera are incapable of:
A. locomotion. B. cell division. C. ingestion. D. reproduction. E. excretion.
Plants obtain the carbon used in the manufacture of organic compounds from
A. fossil fuels. B. carbon dioxide in the soil. C. carbon dioxide in the atmosphere. D. organic compounds in the soil.