NEET BIOLOGY

Detailed explanation-1: -Many fish die due to a change in the winds and the appearance of the El Nino ocean current off the coast of Peru and Chile. Fish on a coral reef stake out their territory and chase away any younger fish that try to live there.

Detailed explanation-2: -The category of density independent limiting factors includes fires, natural disasters (earthquakes, floods, tornados), and the effects of pollution. The chances of dying from any of these limiting factors don’t depend on how many individuals are in the population.

Detailed explanation-3: -Natural disaster is a perfect example of a density independent factor.

Detailed explanation-4: -Some-such as competition, predation, parasitism, and disease-depend on population density. Others-including natural disasters and unusual weather-do not depend on population density.

Detailed explanation-5: -These density-independent factors include food or nutrient limitation, pollutants in the environment, and climate extremes, including seasonal cycles such as monsoons. In addition, catastrophic factors can also impact population growth, such as fires and hurricanes.