Qing Cai
My essays:
My speaking:
- Relict BehaviorIn general, animals act in ways that help them to survive within their specific habitats. However, sometimes an animal species may display a behavior that no longer serves a clear purpose. The original purpose for the behavior may have disa50
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- TPO24_460
- TPO 43 speaking 660
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- TPO38 - Question 651
- TPO38 - Question 666
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- TPO 42-Q650