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Sheep and algae differ markedly in volatility of population size in the face of environmental fluctuations. Predict why?

Respuesta :

Sheep are larger and thus have greater homeostatic resistance to physiological effects of environmental change.

Sheep are longer‐lived, and their populations consist of individuals born over a long period. algae systems have been used as models for studying life-history, of environmental population structure and consumer–resource dynamics This evens out effects on population size of short‐term fluctuations in birth rate. Light availability is a crucial environmental component that affects the quality of algae; when phosphorus is scarce, high light levels can result in large amounts of low-quality (high C:P ratio) algae, whereas low light levels encourage large amounts of higher-quality algae (low C:P ratio) algae.

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