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Ecology Notes
| Question | Answer |
|---|---|
| Ecology | How organisms interact with their environment. Divided into interactions. |
| Ecosystem | How organisms interact with the biotic and abiotic parts of their habitat |
| Abiotic | Nonliving EX: CO2 cycle, types of soil, rock formation |
| Biotic | Living EX: making food, animal interactions |
| Ecosystem's four participants | Primary producers Consumers Decomposers Detritivores |
| i) Primary producers | The only organisms that capture solar energy and converts it into chemical energy to bring it into food chain EX: photoautotrophs, algae, plankton |
| ii) Consumers | Eats autotrophs and heterotrophs EX: herbivores, carnivores, omnivores (scavengers), parasites |
| iii) Decomposers | Rotting stuff that puts nutrients in soil; benefits primary producers EX: fungi and bacteria |
| iv) Detritivores | Invertebrates that feeds on small organic debris (detritus) |
| Food chain | Linear sequence of who eats whom (arrows indicate energy flow) |
| Food web | Series of connected food chains |
| Trophic levels | Distance from the sun at which organisms feed |
| Pyramid: ___% of solar energy is used for photosynthesis | 1% |
| Pyramid: __% average of energy transfer to each level | 10% |
| Pyramid: __% of the remaining energy is lost to ___, ___, and ___. | 90% Heat, leftover biomass (what's not eaten), waste |
| First aspect in energy flow through ecosystem | Primary productivity |
| Net productivity | Amount of photosynthane left after respiration |
| Gross productivity | Total amount of photosynthane |
Created by:
jchanto
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