Question

defference between mortality and natality

Answer 1

Natality:

1. Natality is number of births per unit population per unit time, e.g., per thousand per year in humans.

2. It adds new members to the population.

3. It increases size of population.

4. Natality adds to population density.

5. It maintains continuity of population.

6. It is high when population size is small and low when population size is large.

Mortality:

1. It is number of deaths per unit population per unit time, e.g., per one thousand individuals per year in humans.

2. It removes individuals from the population.

3. It decreases size of population.

4. Mortality reduces density of population.

5. It maintains health of the population.

6. Mortality is low when population size is small and high when population size is large.

Answer 2

natality is number of births per unit population per unit time where as mortality is the number of deaths per unit population per unit