Question

multiple choice 2 points
which factor most likely causes population growth to slow as it approaches carrying capacity?
limited availability of resources
increased genetic diversity
immigration of new individuals
increased birth rate

Explanation:

When a population approaches its carrying capacity (the maximum number of individuals an environment can support), limited resources (like food, water, space) become a major constraint. Increased genetic diversity can be beneficial for a population's adaptability but doesn't directly slow growth near carrying capacity. Immigration of new individuals would likely increase population size rather than slow growth. An increased birth rate would also contribute to population growth, not slow it. Limited resource availability leads to increased competition, higher mortality, and lower birth rates (due to stress, etc.), thus slowing population growth.

Answer:

Limited availability of resources