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(C) The rate of change of population size $(N)$ is given by the formula: $\frac{dN}{dt} = (b - d)N$, where $b$ is the per-capita birth rate and $d$ is

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$10$ million

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(C) The rate of change of population size $(N)$ is given by the formula: $\frac{dN}{dt} = (b - d)N$, where $b$ is the per-capita birth rate and $d$ is the per-capita death rate.Given: $b = 0.002$ and $d = 0.002$.Therefore, the intrinsic rate of increase $(r)$ is $r = b - d = 0.002 - 0.002 = 0$.Since the intrinsic rate of increase is $0$, the population size remains constant over time.Thus, after $10$ generations, the population size will remain $10$ million.

Consider a population of $10$ million cells. Given the per-capita birth rate of $0.002$ (per unit time) and the per-capita death rate of $0.002$ (per unit time), the expected number of cells after $10$ generations is

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