Which of the following ecological locations has the greatest species diversity?
A) tundra
B) deciduous forests
C) tropical rain forest
D) grasslands
E) islands
Answer: C
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. If the efficiency of the alveoli in an human was reduced by 50%, what would you predict would be the effect?
A. The volume of air in the lungs would decrease by 50%. B. The rate of gas exchange would decrease by 50%. C. The affinity of hemoglobin for oxygen would decrease by 50%. D. The muscular control of breathing would decrease by 50%.
Parental support of offspring is an example of
a. artificial selection. b. kin selection. c. natural selection. d. negative selection. e. stabilizing selection.
Subsidiary cells are the only epidermal cells that have chloroplasts. Indicate whether the statement is true or false
A subset of a population of birds leaves its habitat and colonizes a nearby island. After many generations, the island sinks and the population of birds living on the island returns to its original habitat. Which of the following statements most accurately describes the two bird populations?
a. The populations will be able to interbreed even though they are different species. b. The populations were sympatric while they diverged. c. The populations will not be able to interbreed because they are different species. d. The birds were separated by dispersal.