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Chapter 18.3
Chapter 18.3 vocab
| Term | Definition |
|---|---|
| producer | autotrophs that capture energy and use it to make organic molecules |
| chemosynthesis | they 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 organics material that has been produced in an ecosystem |
| net primary productivity | the rate at which biomass accumulates |
| consumer | heterotrophs that obtain energy by consuming organism molecules made by other organisms |
| herbivore | eat producers/plants |
| carnivore | eat other consumers/meat |
| omnivore | eat both producers and consumers/plants and animals |
| detritivore | are consumers that feed on the "garbage" of an ecosystem (organisms that have recently died, fallen leaves, animal wastes) |
| decomposer | they cause decay by breaking down complex molecules into simpler molecules (fungi and bacteria) |
| trophic level | indicates 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 |
Created by:
CoffeyM20
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