Question
Distinguish between: Natality and Mortality.
| 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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| S.No | Column I | S.No | Column II |
| A. | ABO blood group in humans | 1. | Polygenic inheritance |
| B. | Flower colour in snapdragon | 2. | Mendelian genetic disorder |
| C. | Human skin colour | 3. | Sex-linked Mendelian disorder |
| D. | Phenylketonuria | 4. | Incomplete dominance |
| 5. | Multiple allelism |