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Knowing the evolutionary relationships among species allows scientists to choose appropriate organisms for the study of diseases, such as HIV. Scientists are even using the principles of natural selection to identify new drugs for detecting and treating diseases such as cancer. Environmental change and isolation of groups of organisms play an important role in evolution. Environmental change is any change in an environment to which an organism must adapt. Change can be gradual, such as when mountains or deserts form, other species die out, or new species evolve.
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The limbic system is a system of structures that includes the amygdala. This system has been implicated in emotion behavior.
Explanation: Hello! I answered your question but know how to explain. :)
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A) Divergent evolution because all of the species have similar structures during the first stage of development.
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Enzymes reduce the activation energy allowing chemical reactions to occur in living things.
