Question

the model of population growth assumes that the rate of growth is proportional to both the population size and the availability of resources.

Explanation:

The logistic model of population growth takes into account the population - size and the carrying capacity (related to resource availability). In logistic growth, the growth rate is proportional to the population size and the amount of available resources (as the carrying capacity represents the maximum number of individuals that resources can support).

Answer:

logistic