When a population evolves predator defenses, this reduces selective pressure and can lead to diversification into new species. This is called:
A. Interference competition
B. Ecological release
C. Ecological character displacement
D. Escape-and-radiate coevolution
Ans: D. Escape-and-radiate coevolution
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Normally in corn, the waxy and virescent genes are linked. In a certain stock, however, it was found that these two genes assort independently. Which chromosomal aberration would explain this?
A. translocation B. inversion C. duplication D. deletion E. None of the answer options is correct.
Cotyledons are the __________ of a plant
a. developing seeds b. first developing leaves c. gametes d. stored energy
The "background" species extinction rate
A. estimates how many extinctions humans are causing. B. estimates how quickly species disappeared before human intervention. C. measures today's extinction rate of animals. D. measures today's extinction rate of plants. E. All of the answer choices are correct.
____ is when liquid water is forced out of the surface of leaves
a. Root pressure b. Transpiration c. Guttation d. Hydration e. Translocation