Q.Describe steady population with the help of a pyramid.
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Start your 14-day free trial to unlock the full solution →A steady population shows a broad, evenly-proportioned age pyramid because births balance deaths.
An age pyramid represents the proportion of individuals in the pre-reproductive, reproductive, and post-reproductive age groups within a population, typically drawn as stacked horizontal bars of width proportional to each group's size. A steady (stable) population is one in which the birth rate is approximately equal to the death rate, so the total population size remains fairly constant over successive generations. Its age pyramid therefore appears broad-based and only gently narrowing (roughly bell-shaped or near-rectangular) from the pre-reproductive through the reproductive to the post-reproductive class, since each generation is being replaced at roughly the same rate it is lost — unlike an expanding population (broad-based triangular pyramid, more young than old, birth rate exceeds death rate) or a decl …
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