Who believed that species evolve by passing acquired characteristics to offspring?
A) Alfred Russel Wallace B) Jean-Baptiste de Lamarck C) Charles Lyell
Answer: B
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The primary nitrogenous waste excreted by birds is _____
A) ammonia B) nitrate C) nitrite D) urea E) uric acid
Which color of light do plants grow toward?
a) Green b) Blue c) Red d) Yellow
How might secondary contact result in a cline?
a. Reproductive character displacement completes the speciation process. b. Hybrid matings may have low fitness. c. Reproductive isolation is partially complete and a spatial gradient of hybrids forms. d. Reproductive isolation is incomplete and the two populations form a single species without spatial variation.
Reproductive barriers that prevent reproductive attempts or make it unlikely that fertilization will be successful if mating is attempted is called _____ isolating mechanisms.
What will be an ideal response?