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Answers for “如何计算存量的变化率?”

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Increasing the average lifespan decreases the death rate (since Deaths=Deer/LifespanDeaths = Deer / Lifespan). If the birth rate remains constant, the inflow exceeds the outflow, resulting in a positive net growth rate and exponential population growth.

Conditions: The birth fraction parameter remains unchanged.; The lifespan parameter is increased.; The model follows the equation Deaths=Deer/LifespanDeaths = Deer / Lifespan.