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Energy Flow in Eco
| Term | Definition |
|---|---|
| sunlight | the main source of energy source for life on Earth |
| autotrophs | organisms that can capture energy from sunlight or chemicals and use that energy to produce food |
| producers | also known as autotrophs |
| photosynthesis | the process through which autotrophs harness solar energy |
| chemosynthesis | the process through which autotrophs use chemical energy to produce carbohydrates |
| heterotrophs | organisms that rely on other organisms for their energy and food supply |
| consumers | also known as heterotrophs |
| herbivores | heterotrophs that obtain energy by eating only plants |
| carnivores | heterotrophs that eat animals |
| detritivores | organisms that feed on dead matter |
| detritus | dead matter |
| decomposers | heterotrophs that break down organic matter |
| food chain | a series of steps in which organisms transfer energy by eating and being eaten |
| food web | network of complex interactions formed by the feeding relationships among the various organisms in an ecosystem |
| trophic level | each step in a food chain or food web |
| ecological pyramid | a diagram that shows the relative amounts of energy or matter contained within each trophic level in a food chain or food web |
| biomass | the total amount of living tissue within a given trophic level |
| 10 | about this much percent is transferred to organisms in the next trophic level |