Question

Identify the correct statement about population attributes from the following.

• A. Population has births and deaths, which are expressed as per capita births and deaths
• B. Sex ratio is an population attribute
• C. Age pyramids generally shows age distribution of individuals in a separate diagram
• D. Population size is more technically called population magnitude

Answer 1

The correct option is B Sex ratio is an population attribute

Population is a group of individuals of the same species living at one place. A population has certain attributes which an individual does not. The population has birth rates and death rates which are expressed as per capita births and deaths. An individual may have birth and death.

Another attribute of a population is sex ratio. An individual is either a male or a female but a population has a sex ratio. The sex ratio is the ratio of males to females in a population. In most sexually reproducing species, the ratio tends to be 1:1.

Age pyramid is a graphical representation of the age structure or the distribution of population according to age groups (pre-reproductive age group, reproductive age group, and post-reproductive). By plotting these groups of individuals three different types of age pyramid are formed, namely expanding, stable, and declining. The age distribution of males and females are shown in a combined diagram.

Population size is more technically called population density.