AP BIOLOGY

Detailed explanation-1: -Density-dependent factors include disease, competition, and predation. Density-dependant factors can have either a positive or a negative correlation to population size. With a positive relationship, these limiting factors increase with the size of the population and limit growth as population size increases.

Detailed explanation-2: -Density-dependent factors are the limiting factors of an ecosystem that regulate population growth in a density-dependent manner. They are the key regulators in K-strategist organisms. These limiting factors are biotic in nature ranging from disease, predation, and competition to parasitism.

Detailed explanation-3: -In the natural world, limiting factors like the availability of food, water, shelter and space can change animal and plant populations. Other limiting factors, like competition for resources, predation and disease can also impact populations.

Detailed explanation-4: -Density-dependent factors have varying impacts according to population size. Different species populations in the same ecosystem will be affected differently. Factors include: food availability, predator density and disease risk. Density-independent factors are not influenced by a species population size.