science ecology test
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28 terms
Terms | Definitions |
|---|---|
 ecology | the scientific study of organisms and how they interact with other organisms and how they interact within their environemnt |
| biosphere | the region where all life exists. spans from 8km above earth to 11 km beneath the sea |
| Organism | an individual of a particular species |
| population | groups of organisms that belong to the same species that live in a common are |
| Community | groups of different species that live together |
| Ecosystem | all the organisms and physical envionment a particular place |
| Biome | Group of ecosystems that have the same climate |
| Biosphere | Entire earth and atmosphere |
| the sun | is the main energy source for most life on earth (Photosynthesis) |
| disiduous forest | our biome |
| producers | make food essentially autotrophs- energy from sun |
| consumers | must eat their food essentially heterotrophs- energy from food |
| herbivores, carnivores, omnivores, detriovores, decomposers | 5 types of heterotrophs |
| herbivores | eat producers only (cow, caterpillar) |
| carnivores | eat other consumers (dog, snake |
| omnivores | eat both producers and consumers (bears, humans |
| detriovores | "garbage men"- eat dead plant and animal remains (crabs, mites) |
| decomposers | break down organic matter (bacteria, fungi |
| sun --> autotroph --> heterotroph | Energy flows through an ecosystem in one direction: |
| food chain | steps in which organisms transfer by eating and being eaten - always start with a producer |
| food web | Network of complex interactions consisting of overlapping food chains |
| trophic levels | each step in a food chain or food web |
| primary, secondary, tertiary | Producers --> _______ consumers (herbivores) --> ________consumers (carnivores) --> _______ consumers (top carnivores) |
| below | Each consumer depends on the trophic level ____________it for energy |
| recycled | Matter is _____________within and between ecosystems |
| transpiration | movement of H2O between plants |
| Water, Carbon, Nitrogen, Oxygen, Phosphorus | types of cycles |
| LARK DOES | who rocks |
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