Snab topic 5 biology definitions

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Net primary productivity
The rate at which energy is transferred into organic molecules that make up new plant biomass
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Gross primary productivity
The rate at which energy in incorporated into organic molecules by an ecosystem
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Habitat
A place with a distinct set of conditions in which an organism lives
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Community
The various populations sharing a habitat
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Population
A group of individuals of the same species found in one area
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Niche
The roleof an organism in it's habitat
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Biotic factor
Living variables in an environment which affect an organisms survival
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Abiotic factor
Non-iving variables in an environment which affect an organisms survival
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Biosphere
Partf the earth and its atmosphere that is inhabited by living organisms
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Anthropogenic Factors
factors cause by humans
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Succession
Change in a community over time
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Climax Community
The stable community as which succession no longer occurs
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Primary succession
Starts where there has never before been a community, in newly formed habitats
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Secondary succession
Starts on bare soil where the previous community had been cleared
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Deflected succession
When succession is inhibited due to human activity
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Producers/autotrophs
Organisms which can make their own organic compounds from inorganic compounds
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Primary consumers
Herbivores, eat lant material
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Secondary consumers
Eat primary consumers, carnivores
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Trophic level
Position occupied on the food chain
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Detritivores
Primary consumers which feed on anima faces and dead matter
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Dendrochronology
The study of tree rings
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Card 2

Front

The rate at which energy in incorporated into organic molecules by an ecosystem

Back

Gross primary productivity

Card 3

Front

A place with a distinct set of conditions in which an organism lives

Back

Preview of the back of card 3

Card 4

Front

The various populations sharing a habitat

Back

Preview of the back of card 4

Card 5

Front

A group of individuals of the same species found in one area

Back

Preview of the back of card 5
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