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21 Cards in this Set
- Front
- Back
biosphere |
The area of Earth where life is found
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niche |
the functional role an organism plays in the community |
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biotic factor |
a living factor |
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trophic level |
the position of an organism in a food chain
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competition |
an active struggle between organisms for a resource in short supply
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symbiosis |
when 2 organisms live in close association with one another and at least one of them benefits
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turgor |
the pressure a plant cell vacuole exerts against the cell wall when it swells |
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'm' in mRNA |
messenger |
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tissue |
a group of similar cells which work together to carry out the same function |
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tissue culture |
growth of cells in a sterile nutrient medium outside of an organism |
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conservation |
the wise management of our current resources in order to maintain a range of habitats and prevent death and extinction of organisms |
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pollution |
addition of harmful materials to the environment |
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monocotyledonous plant |
one seed/embryonic leaf |
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variation |
when individuals in a group of successfully interbreeding organisms show different characteristics from one another |
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endotherm |
a warm-blooded animal, can maintain a constant internal environment unaffected by its external environment |
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digestion |
the breakdown of food so that it's small enough to pass into body cells |
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triglyceride |
lipid made-up of one glycerol molecule and 3 fatty acid molecules |
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ecosystem |
group of organisms which interact with their environment as one |
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habitat |
place which an organism lives |
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food web |
inter-connected food chains |
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fauna |
animal |