HCS 7th Ecology
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Created by:
sarah_decker on October 29, 2012
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Description:
Ecology unit - food web
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Set copied from wilsonju
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31 terms
Terms | Definitions |
|---|---|
 organism | a living thing |
| individual | one single organism |
| population | all the individuals of one kind(species) in one place at one time |
| community | all the interacting populations living in one defined area and getting their food from their environment |
| abiotic | nonliving |
| biotic | living organisms |
| species | a kind of organism; members of a species that are all the same kind of organism |
| food web | a diagram showing all the feeding relationships in a community |
| producers | an organism that is able to produce its own food through photosynthesis |
| photosynthesis | the process by which plants make food from water and carbon dioxide in the presence of light |
| consumers | an organism that eats other organisms |
| primary consumers | an organism that gets its energy from plants (mouse) |
| herbivores | an organism that eats only plants |
| secondary consumers | a consumer that gets its energy (eats) from other consumers (ex snake eats the mouse) |
| third level consumers | a consumer that gets its energy from secondary consumers (ex hawk eats the snake) |
| carnivores | a consumer that eats animals |
| omnivores | a consumer that eats both plants & animals |
| decomposers | an organism that breaks down dead remains and returns the components to the environment to be used again |
| dissolved oxygen | The oxygen that fits between water molecules in a stream or lake. Fish use this to live. |
| pH | measure of the hydrogen ions in a substance |
| turbulence | movement of water |
| pollution | anything undesirable or produces bad effects in creation |
| stream bed | bottom of the stream |
| rate of flow | how fast the water is moving |
| ecology | the study of the interaction between biotic and abiotic factors |
| habitat | the place where an organism lives |
| food chain | ...a series of steps that show how energy is passed from producers to consumers |
| energy | ...the ability to be active |
| environment | the surroundings of an organism |
| flora | plant life |
| fauna | animal life |
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