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Ecological niche in Ecology for NCEA level 2

Ecological niche

The specific role a species has in its environment

Abiotic factors

the non-living parts of an ecosystem (e.g. Rain, wind, sun, temperature)

Biotic factors

living parts of an ecosystem (e.g. competition, predation, disease)

Tolerance range

the range of conditions that an oragnism can survive in

Optimum range

Range in which a species will thrive


active at night


Active during the day


active at dawn and dusk

Structural adaptations

a physical feature of an organism's body having a specific function that contributes to the survival of the organism

physiological adaptations

Chemical processes an organism uses to survive

Behavioral adaptations

changes in an animal's behavior that help it survive


True or false? different species often occupy the same niche in a specific habitat

Optimum range

Organism will experience physiological stress if outside this range

Tolerance range

Organism will die if outside this range

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