Deuterostomia is a ____ lineage of animals that dates to the ____
a. polyphyletic; Mesozoic
b. paraphyletic; Cenozoic
c. monophyletic; Paleozoic
d. paraphyletic; Paleozoic
e. polyphyletic; Cenozoic
C
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Prokaryotes ____
a. lack a nucleus b. are generally larger than eukaryotes c. are found only in certain niches d. have a narrow range of metabolic activities e. have a smaller biomass than plants
Which of the following organisms would be likely to use the least energy per kilogram of body weight to maintain its temperature in a preferred range?
a. a whale in the Arctic Ocean b. a clam remaining submerged at low tide c. a tuna swimming in the deep ocean d. a lizard in a desert environment e. a human in a tropical environment
Which of the following is an example of an energy-requiring reaction?
a. The combustion of the gas in your car to move it forward. b. The burning of a log to generate heat. c. The synthesis of carbon dioxide into glucose.
d. The oxidation of metal to form rust. e. The metabolism of glucose to form ATP.
According to the World Health Organization,
approximately how many children around the world show a vitamin A deficiency? a. 14 million b. 24 million c. 140 million d. 524 million e. 724 million