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18-3 terms
| Question | Answer |
|---|---|
| producers | organisms that capture energy and use it to make organic molecules |
| chemosynthesis | a process in which bacteria use energy stored in inorganic molecules to produce carbohydrates |
| gross primary productivity | the rate at which producers in an ecosystem capture the energy of sunlight by producing organic compounds |
| biomass | the organic material that has been produced in an ecosystem |
| net primary productivity | the rate at which biomass accumulates |
| consumers | organisms that obtain energy by consuming organic molecules produced by other organisms |
| herbivores | eat producers |
| carnivores | eat consumers |
| omnivores | eat both producers and consumers |
| detritivores | consumers that feed on the garbage of an ecosystem |
| decomposers | detritivores that cause decay by breaking down complex molecules into simpler molecules |
| trophic level | the organism's position in a sequence of energy transfers |
| food chain | a single pathway of feeding relationships among organisms in an ecosystem that results in energy transfer |
| food web | the interrelated food chains in an ecosystem |