Which of the following states has the highest population density?

The effect of various factors on a population is reflected in its size,which can be expressed by .......

Emigration is:

Read the following statements and select the correct option with respect to population attributes:
$(a)$ Population density is necessarily measured in numbers.
$(b)$ Tiger census is often based on pug marks and fecal pellets.
$(c)$ Biomass is not a meaningful measure to know population size.
$(d)$ Size of a population for any species is not a static parameter.

Periodic departure and return of an individual in a population is known as

If the mean and the median pertaining to a certain character of a population are of the same value,the following is most likely to occur: