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mass extinction, climate change, genetic flexibility, biological factor, marine organism, consistent, promote,
terrestrial, ecological niches, adaptive zone, evolutionary novelties, genetic equilibrium, principle, dominant
Exercise 2
: Choose the best option to complete the idea.
1. If a species does not adapt
to a changing environment, it is likely that it will
become extinct/become
overpopulated/reach its carrying limit.
2. It is most accurate to characterize the development of sophisticated species like giraffes, chimpanzees, and
whales as a
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