The number of organisms in a population is added by:

  • A
    Immigration
  • B
    Birth
  • C
    Emigration
  • D
    Both $(A)$ and $(B)$

Explore More

Similar Questions

The attributes of birth rate and death rate are not applicable to which of the following?

What is formed by the aggregation of individual organisms of the same species?

Some characteristics of the demography of developing countries are ....

Information on birth-rate,death-rate,sex-ratio,and age distribution of a population can be obtained from:

$A$ biologist studied the population of rats in a barn. He found that the average natality was $250$, average mortality $240$, immigration $20$ and emigration $30$. The net increase in population is

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo