Age pyramids | Organisms and Populations | Biology | Khan Academy

In this video, we explore how today's population can help us predict how it will be like in the future. And, talk about the showrunner of this prediction: the age pyramids.

Timestamps:

00:00 - What is an age pyramid?
01:52 - Expanding age pyramid
05:44 - Declining age pyramid
07:48 - Stable age pyramid
09:32 - India's age pyramid

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