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31 Cards in this Set
- Front
- Back
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HABITAT |
An area where an organism lives |
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Niche |
Role or position that an organism has |
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Predation |
One organism pursuing another organism for food or a close relationship. |
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Mutualism |
two or more organisms that live closely together and benefit each other |
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Commensalism |
one organism benefits but the other one isn’t harmed or helped |
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Parasitism |
One organism benefits by the expense of another organism |
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Autotroph |
An organism that collects energy from sunlight or inorganic substances to produce food. |
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Heterotroph |
An organism that gets energy by consuming others |
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Herbivore |
Something that only east plants (eats plants) |
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Ecology |
Scientific disabling min which the relationships among living organisms and the interactions the organisms have with their environment are studied. |
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Biosphere |
Portions of the Earth the supports life |
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Biotic factors |
Living factors in an environment |
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Abiotic |
NONliving factors in an environment |
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Limiting factor |
Abiotic or biotic factors that restricted the numbered, reproduction, or distribution of organisms |
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Tolerance |
The ability of any organism to survive when next to abiotic or biotic factors |
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Population |
Individuals of a certain species that share the same geographic location at the same time |
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Biological community |
A group of interacting populations that occupy the same geographic area at the same time |
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Ecosystem |
Biological community and all abiotic factors that affect it (not effect) |
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Biome |
Large group of ecosystems that sharer the same climate and similar types of communities |
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Carnivore |
Heterotrophs that eat other heterotrophs (meat eaters) |
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Omnivores |
Eat both plants and animals |
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Detrivores |
Eat fragments of dead things, returning to soil, air, and water (worms and insects) |
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Trophic level |
Each step in a food chain or food web |
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Food chain |
An animals eating another animals that eats another animal that eats a plant and the plant gets energy by the sun |
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Food web |
Food chains and pathways in which energy flow through a group of organisms |
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Biomass |
The total mass of living matter at each trophic level-decreases at each trophic level |
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Matter |
Anything that takes up space and had made-providers the nutrients needed for organisms to function |
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Nutrient |
Chemical substance that an organism must obtain from its environment to sustain life |
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Biochemical cycle |
The exchange of matter through the biosphere |
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Nitrogen fixation |
Nitrogen gas is converted to ammonium |
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Denitrification |
Some soil bacteria covert to nitrogen oxygen (NO2) and (NO3) back into nitrogen gas and then back to the atmosphere |
