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<u><em>P-waves, S-waves, and surface waves</em></u> are the three types of waves produced during an earthquake.
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The answer is A: a flagship species.
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Answer:
Ecological and ethological approaches to the study of behaviour. The natural history approach of Darwin and his predecessors gradually evolved into the twin sciences of animal ecology, the study of the interactions between an animal and its environment, and ethology, the biological study of animal behaviour.
