AP BIOLOGY

Detailed explanation-1: -This particular exponential curve models exponential growth; that is, as time increases, so does the population of rabbits. The accelerating increase in the number of rabbits is typical of exponential growth situations.

Detailed explanation-2: -A female can produce a new litter of 12 babies every month. Each litter will be assumed to have 50% male and 50% female rabbits. Rabbits reach reproductive maturity in 6 months, and can then start producing litters of 12 each.

Detailed explanation-3: -Any of these factors-food, shelter, breeding sites, predators, and more-may serve to limit the growth of a rabbit or toad population.

Detailed explanation-4: -And while every population pyramid is unique, most can be categorized into three prototypical shapes: expansive (young and growing), constrictive (elderly and shrinking), and stationary (little or no population growth). Let’s take a deeper dive into the trends these three shapes reveal about a population and its needs.