AP BIOLOGY

Detailed explanation-1: -In logistic growth, a population’s per capita growth rate gets smaller and smaller as population size approaches a maximum imposed by limited resources in the environment, known as the carrying capacity ( K). Exponential growth produces a J-shaped curve, while logistic growth produces an S-shaped curve.

Detailed explanation-2: -Answer and Explanation: An S-shaped population curve represents logistic growth. The lower curve of the S is formed as a small population grows exponentially. The upper curve of the S is formed as the population nears its carrying capacity and its growth rate slows.

Detailed explanation-3: -When resources are limited, populations exhibit logistic growth. In logistic growth, population expansion decreases as resources become scarce, and it levels off when the carrying capacity of the environment is reached, resulting in an S-shaped curve.

Detailed explanation-4: -Two types of population growth patterns may occur depending on specific environmental conditions: An exponential growth pattern (J curve) occurs in an ideal, unlimited environment. A logistic growth pattern (S curve) occurs when environmental pressures slow the rate of growth.

Detailed explanation-5: -Answer and Explanation: An s-shaped curve for population growth suggests that the population initially grew slowly, and then it grew exponentially for a time.