Define population.List two main characteristics of population.

Explain any three characteristics of population.

Write any two main characteristics of S.H.M.

Define population. Describe in brief the characteristics population.

Complete the missing links: ………………….is the study of changes in density and growth of population in relation to various parameters of populations.

(a) Define and give one example of each-Competition, Parasitism. (b) List any three important characteristics of population.

Define ecological succession. List any two characteristics of it. Distinguish between primary and secondary succession.

Define population and community.