Natality is defined as A. Movement of individuals into and out of population B. Total number of individuals present per unit area at a given time C. Loss of individuals due to death in a population under environmental conditions D. Increase in number of individuals in a population under given environmental conditions
Option D. Natality means number of births during a given time period in a population that are added to initial density. Increase in number of individuals in a population under given environmental conditions can be due to natality and immigration. So the correct answer is 'increase in number of individuals in a population under given environmental conditions'.
