Explain the important stages in protein digestion

Reference no: EM13532366

1. Using a specific behaviour as an example, explain thedifference between proximate causes and ultimate causes of behaviour.

2. Explain the important stages in protein digestion, from ingestionthrough excretion of wastes.

3. Why is light such an important factor in determining thedistribution of organisms in aquatic environments?

Reference no: EM13532366

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