NEET BIOLOGY

Detailed explanation-1: -Density-dependent limiting factors affect all populations, whether the population size is two or a hundred. Human activities, such as damming rivers, are density-independent limiting factors.

Detailed explanation-2: -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.

Detailed explanation-3: -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-4: -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-5: -Limiting factors are resources or other factors in the environment that can lower the population growth rate. Limiting factors include a low food supply and lack of space. Competition for resources like food and space cause the growth rate to stop increasing, so the population levels off.