NEET 2020
- Exam
- NEET
- Year
- 2020
- Subject
- Zoology
- Chapter
- Organisms and Populations
NEET 2020 · Zoology · Organisms and Populations
The impact of immigration on population density is:
The impact of immigration on population density is:
Options
- ANegative
- BBoth positive and negative
- CNeutralized by natality
- DPositive
Correct answer
D. Positive
Step-by-step solution
The population density of the population is mainly affected by four factors, i.e. natality, mortality, immigration and emigration.
Natality and immigration contribute to an increase in population density, while mortality and emigration contribute to decrease in population density.
Thus, the impact of natality and immigration is positive, while, mortality and emigration is negative.
The formula for calculating population density is: