________ is said to occur when a similar trait evolves in two unrelated species while ________ is when a species evolves in response to another species.
A. Coevolution; convergent evolution
B. Convergent evolution; coevolution
C. Sympatric speciation; coevolution
D. Allopatric speciation; convergent evolution
Answer: B
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In Earth's history, what might the cooling of the Earth and the resulting change from a forested to a grassy landscape have made adaptive in humans?
A. grasping fingers B. complex language C. social structure D. bipedalism
Each of the following is an ahermatypic coral except:
a. gorgonians. b. black corals. c. plate corals. d. soft corals.
Plant X is receiving 10 hours of light per day. It needs a day length of less than 11 hours to flower. One day the dark period for plant X was interrupted by a flash of red light. Will plant X flower? Why or why not?
What will be an ideal response?
Gametetogenesis (gamete formation) is
a. the result of the process of mitosis. b. the pairing of homologous chromosomes. c. the formation of sex cells. d. the fusion of gametes. e. a process that occurs only in asexually reproducing forms.