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Definition
| an organism that can make organic molecules from inorganic molecules; a photosynthetic or chemosynthetic autotroph that serves as the basic food source in an ecosystem |
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| the production of carbohydrates through the use of energy from inorganic molecules instead of light |
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| gross primary productivity |
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Definition
| the rate at which organic matter is assimilated by plants and other producers during a period of time over a certain area |
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Definition
| plant material, manure, or any other organic matter that is used as an energy source |
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Definition
| the rate at which biomass accumulates in an ecosystem |
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Definition
| an organism that eats other organisms or organic matter instead of producing its own nutrients or obtaining nutrients from inorganic sources |
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Definition
| an organism that eats only plants |
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Definition
| an organism that eats animals |
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Definition
| organism that eats both plants and animals |
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Definition
| a consumer that feeds on dead plants and animals |
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Definition
| an organism that feeds by breaking down organic matter from dead organisms; examples include bacteria and fungi |
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Definition
| one of the steps in a food chain or food pyramid; examples include producers and primary, secondary, and tertiary consumers |
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Definition
| the pathway of energy transfer through various stages as a result of the feeding patterns of a series of organisms |
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Definition
| diagram that shows the feeding relationships between organisms in an ecosystem |
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