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Organisms and Populations — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYOrganisms and Populations4 Marks
Question
Natality and Mortality.
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Answer

Natality Mortality
1. Birth rate of any population is called its natality.1. Death rate of any population is called its mortality.
2. Rise in natality increase the population density.2. Rise in mortality decrease the population density.
3. Decline in natality decrease the population.3. Decline in mortality increase the population.
4. Natality is the positive factor for population growth.4. Mortality is the negative factor for population growth.
5. Absolute natality will always be more than realized natality.5. Absolute mortality will always be less them realized mortality.

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