Question

Fill in the blanks
1. ___(i) ___ is the rate at which new individuals are added to a population by reproduction.
2. ___ (ii) ___ is the rate at which individuals are lost by death.
3. ___ (iii) ___ refers to individuals moving away from each other.
4. ___ (iv) ___ refers to individuals moving out of a population.
5. ___ (v) ___ refers to individuals moving into a population.

• A. (i) Immigration (ii) Emigration (iii) Dispersal (iv) Mortality (v) Natality
• B. (i)Dispersal (ii)Emigration (iii)Immigration (iv)Mortality (V)Natality
• C. (i)Natality (ii)Mortality (iii)Dispersal (iv)Emigration (v)Immigration
• D. (i)Immigration (ii)Natality (iii)Dispersal (iv)Mortality (v)Emigration

Answer 1

The correct option is C (i)Natality (ii)Mortality (iii)Dispersal (iv)Emigration (v)Immigration

Natality or birth rate is the rate at which new individuals are added to a population by reproduction. Death rate or mortality is the rate at which individuals are lost by death. Dispersal refers to individuals moving away from each other. Individuals moving out of a population is called emigration while immigration refers to individuals moving into a population.