Ecology key terms (iGCSE)

A population is defined as

• the place where an organism lives

• a community and the habitat in which it lives

• A group of organisms of a single species occupying a particular area.

• The non-living factors in a habitat,

A habitat is defined as

• the place where an organism lives

• a community and the habitat in which it lives

• A group of organisms of a single species occupying a particular area.

• The non-living factors in a habitat,

A ecosystem is defined as

• the place where an organism lives

• a community and the habitat in which it lives

• A group of organisms of a single species occupying a particular area.

• The non-living factors in a habitat,

A community is defined as

• The diversity of plant and animal life in a particular habitat, affected directly by biotic and abiotic factors.

• The non-living factors in a habitat,

• The living factors in a habitat

• All the populations of different organisms that live together in a habitat

Abiotic factors are

• The diversity of plant and animal life in a particular habitat, affected directly by biotic and abiotic factors.

• The non-living factors in a habitat,

• The living factors in a habitat

• All the populations of different organisms that live together in a habitat

Biotic factors are

• The diversity of plant and animal life in a particular habitat, affected directly by biotic and abiotic factors.

• The non-living factors in a habitat,

• The living factors in a habitat

• All the populations of different organisms that live together in a habitat

Biodiversity is defined as

• All the populations of different organisms that live together in a habitat

• The diversity of plant and animal life in a particular habitat, affected directly by biotic and abiotic factors.

• A group of organisms of a single species occupying a particular area.

• A community and the habitat in which it lives

Examples of abiotic factors are (click all that apply)

• Light intensity

• Temperature

• Predation

• Soil pH

Examples of biotic factors are (select all that apply)

• Temperature

• Competition

• Grazing

• Disease

To estimate the percentage population of an organism in the field we can use a piece of apparatus called a

• Stethoscope

• Quadrat

• Protractor

• Lawn mower