Populations and Ecosystems 1.1

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What is the definition of a Habitat?
The place where an orgamism lives, eg rocky shore or field.
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What is the definition of a population?
All the organisms of one species in a habitat.
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What is the definition of a Community?
Populations of different species in a habitat make up a community.
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What is an ecosystem?
Populations of different species living in a particular area and all the abiotic conditions eg. freshwater ecosytem such as a lake.
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What is the definition of Abiotic condtions?
The non-lving features of the ecosytem, eg. temperature and availability of water.
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What is the definition of Biotic conditions?
The living features of the ecosystem, eg predators or food.
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What is the definition of a Niche?
The role of a species within its habitat, eg what it eats and where and when it feeds.
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What is the definition of Adaptation?
A feature that members of a species have that increases their chance of survival and reproduction.
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What two major processes must we consider in terms of an ecosytem?
1) The flow of energy through the system 2) the cycling of elements with in the system
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What is the biosphere?
the life-supporting layer of land , air and water that surrounds the earth.
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What happens when two species occupy the same niche?
They will compete with each other, and one species will be more successful thant the other , until only one if left.
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What does the niche the species occupies with in its habitat include?
1) Biotic interations, such as the organism it eats, that its eaten by. 2) its abiotic interations eg, the oxygen an organism breathes in, and carbon dioxide it breathes out.
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What is the name given to all the orgamisms of one species in a habitat?
Population
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Give the term for the non-living features of an ecosytem?
Abiotic features
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What happens when two species try to occupy the same niche in an ecosytem?
They compete with each other and eventually one will out compete the other and only one will be left.
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Card 2

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What is the definition of a population?

Back

All the organisms of one species in a habitat.

Card 3

Front

What is the definition of a Community?

Back

Preview of the front of card 3

Card 4

Front

What is an ecosystem?

Back

Preview of the front of card 4

Card 5

Front

What is the definition of Abiotic condtions?

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