Which of the following organisms would be most likely to accumulate toxins due t

Question

Which of the following organisms would be most likely to accumulate toxins due to biological magnification? Males of different species of the fruit fly that live in the same parts of the Hawaiian Islands have different elaborate courtship rituals such as making stylized movements that attract females. What type of reproductive isolation does this represent? Species in imminent danger of extinction are labeled threatened. The idea that new species occur suddenly in the fossil record followed by long periods of little change is called punctuated equilibrium.

Explanation / Answer

40. Large fish. Small fish feed on phyto and zoo plankton, the large fish feed on small fish. Accumulation of toxins occur in these large fish. Biomagnification is highest in top predators.

41. Behavioral isolation. It helps members of same species behave differently, especially to choose their mates.

42. False. Threatened are those species which are vulnarable to extinction in near future.

43. True.

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