Question

Under normal conditions, the most important factors influencing population density are

• A. E and I
• B. B and D
• C. B, D and I
• D. B, D, E and I

Answer 1

The correct option is B B and D

Population Density - Normal conditions :
Population density refers to the number of individuals within a given area.
Under normal conditions, natality and mortality influence the population density.

Population Density - Special conditions :
Under special conditions, immigration and emigration influence the population density. For example, population density of a newly colonised habitat may be influenced more by immigration than birth rates.

Final answer
(A) B and D