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Ecology
grade 9 ecology terms and definitions
| Term | Definition |
|---|---|
| biome | large geographical region that contains similar ecosystems |
| terrestrial | land based/aquatic water based |
| biosphere | a part of our planet, including water,land and air,where life exists. biomes combine to form this |
| herbivores | an animal that eats only plants |
| carnivores | an animal that eats mostly meat |
| omnivores | an animal that eats both plants and meat |
| predators | animals that catches and feeds off of other live animals |
| scavengers | an animal that mostly eats decaying biomass |
| parasites | obtain their food by feeding off another organism |
| ecology | Study of how organisms interact with each other and their environment in a system. |
| abiotic | non living things, physical things such as , minerals, air or things measured such as temperature, hours of daylight, salt concentration |
| biotic | living, these factors are organism such as plants, animals, mushrooms, bacteria, algae |
| ecosystem | A complex self regulating system in which living things interact with living and non living things. any network of interacting living & non-living factors |
| natural ecosystem | A natural ecosystem is neither planned nor maintained by people. |
| artificial ecosystem, | Artificial Ecosystem is planned and maintained by people. Examples: City, Zoo, Aquarium, Farm |
| species | a group of similar organisms in an ecosystem that can reproduce with each other |
| population | A group of members of the same species that live in the same area. |
| community | populations of different species that live and interact in the same area. |
| niche | all the interactions of a given species with its ecosystem |
| detritivores | A consumer that feeds on organic matter |
| decomposers | a special group of consumers that break down organic matter and release the nutrients back into the ecosystem |
| autotroph | Organisms that can make their own food from basic nutrients and sunlight. Examples:green plant,algae |
| heterotroph | organisms that must feed on other organisms to obtain energy |
| food chains | show A step-by-step sequence of who eats whom in an ecosystem & the one-way flow of energy from the producer to the top level consumer. |
| photosynthesis | The process plants use to produce carbohydrates from carbon dioxide, water, and sunlight. (CO2+H20→ sugar + O2) |
Created by:
ab146he
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