Question

Population growth of a species is not related to which of the following parameters ?

• A. For a newly colonized habitat, immigration plays major role than the birth rate
• B. $N_{1+1}=dn/dt-\pi N$
• C. Under normal conditions, natality and mortality are the most important factors
• D. Out of the four basic processes affecting population growth, three lead to increase in population

Answer 1

The correct option is D Out of the four basic processes affecting population growth, three lead to increase in population

Size of a population for any species is not a static parameter. It keep on changing with time depending upon various factors. Density of a population in a given habitat during a given period fluctuates due to four basic processes, two of which contributes to increase (natality and immigration) and two contributes to decrease (mortality and emigration).

So, the correct answer is option -b.