NEET BIOLOGY

Detailed explanation-1: -r-selected species are those that emphasize high growth rates, typically exploit less-crowded ecological niches, and produce many offspring, each of which has a relatively low probability of surviving to adulthood (i.e., high r, low K).

Detailed explanation-2: -Although not always the case, r-selection is more common among smaller animals with shorter lifespans and, frequently, non-overlapping generations, such as fish or insects.

Detailed explanation-3: -Characteristics of r-strategists Having a huge number of offspring. Small size of both offspring and adults. Minimal parental care before reaching reproductive maturity.

Detailed explanation-4: -Examples of r-selected species include pest organisms, such as rodents, insects, and weeds.

Detailed explanation-5: -The terms r-selection and K-selection are used by ecologists to describe the growth and reproduction strategies of organisms. r-selected species have a high growth rate but low survivability (“cheap” offspring) K-selected species have a low growth rate but high survivability (“expensive” offspring)