question_answer 19)

What are the different ways in which individuals with a particular trait may increase in a population?

Answer:

There are different ways in which an individual with a particular trait may increase in a population (i) When a colour variation arise during reproduction, it can pass the colour on to its progeny which may protect them from prey. (ii) Accidents in small population can change the frequency of some genes in a population even if they give no survival advantage. (iii) Poor nourishment may reduce the population of individuals but when nourishment conditions improve the population starts increasing again. Thus, the maturation, adaptation to environment and natural selection may increase a particular trait in a population.