GENETICS AND EVOLUTION
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is the following most likely to cause the extinction of a species?
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mutation
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a changing environment
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natural selection
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genetic variation
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Explanation:
Detailed explanation-1: -Anthropogenic climate change is predicted to be a major cause of species extinctions in the next 100 years.
Detailed explanation-2: -Species become endangered for two main reasons: loss of habitat and loss of genetic variation. A loss of habitat can happen naturally. Dinosaurs, for instance, lost their habitat about 65 million years ago.
Detailed explanation-3: -Climate change interacts with threats such as habitat loss and overharvesting to further exacerbate species declines. The decline of species and ecosystems can then accelerate climate change, creating a feedback loop that further exacerbates the situation.
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