‹ Class 8 · Ch 12
How Nature Works in Harmony · Principle 4 of 21

Population

The same kind, in one place and time.

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NCERT: 12.2 Who All Live Together in Nature?

Think

Fish in a pond

A group of fish of the same kind lives together in a pond.

What do we call this group?

What this lesson covers

The idea

A population is a group of the same type of organisms living in a habitat at a given time.

Fish in a pond

A group of fish of the same kind lives together in a pond.

What do we call this group?

  • A population
  • A habitat
  • A community

Two populations

Open both tabs.

Same kind together

A population is a group of the same type of organisms in a habitat at a given time. We can observe and record the populations of different kinds of organisms in one habitat.

A population is a group of the same type of organisms in a habitat at a given time.

Notes

A population = same type of organisms, one habitat, one time.

Check yourself

A group of the same kind of organisms in a habitat at a given time is a …

A group of fish of the same kind in a pond is …

Fish and frogs in the same pond are …

A population is made of organisms of …

  • community. A community has different populations.
  • population — correct. Yes!
  • habitat. A habitat is the place where they live.
  • a community. A community has populations of many kinds.
  • an ecosystem. An ecosystem includes living and non-living components.
  • a population of that fish — correct. Yes!
  • two different populations — correct. Yes!
  • one population. They are different kinds, so two populations.
  • an abiotic component. They are living, so biotic.
  • different types. That would be a community.
  • the same type — correct. Yes!
  • only plants. A population can be of any one type of organism.
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