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Chapter 2
Science Vocab.
| Question | Answer |
|---|---|
| Producer | organism that makes its' own food |
| consumer | organism that gets energy by eating other animals |
| herbivore | organism that eats only plants |
| carnivore | organism that eats only meat |
| omnivore | organism that eats both meat and plants |
| scavenger | carnivore that feeds on bodies of dead organisms |
| decomposer | break down biotic wastes and dead organisms and it returns raw materials to the ecosystem |
| food chain | events that happen when an organism eats another organism to get energy |
| food web | many overlapping food chains in one ecosystem |
| energy pyrimid | shows the amount of energy that moves from one feeding level to another in a food web |
| Evaporation | a process where molecules of water take in energy and changes to gas |
| condensation | the process where gas turns into liquid |
| precipitation | when heavy drops fall to Earth |
| nitrogen fixation | a process of changing free nitrogen into usable nitrogen |
| Biome | A group of ecosystems with alike climates and organisms |
| climate | an average temp and amount of precipitation |
| desert | a place that has less then 25 cm of rain every year |
| rain forest | forests that have large amount of rain fall year round |
| emergent layer | tallest tree in a rain forest that also receives the most light |
| canopy | a leafy roof |
| understory | a layer that is shorter then the emergent layer and includes trees and vines |
| grassland | an area that has grass organisms and mostly nonwoody plants |
| savana | grasslands that are close to the equator |
| deciduous tree | trees that loose their leaves and grow new ones every year |
| boreal forst | dense forests in the Northern Hemisphere |
| coniferous tree | a tree that make their seeds in cones and they have needle leaves |
| tundra | an extremely cold and dry biome |
| permafrost | tundra soil that is frozen |
| Estuary | where fresh river water meets salty ocean water |
| intertidal zone | between the highest high-tide and the lowest low-tide |
| neritic zone | shallow water found under the low-tide and going over the contenential shelf |
| Biography | Study of where organisms are and how they are there |
| continental drift | plates that move and the contenits move with them |
| dispersal | the movement of organisms from a place to a different place |
| exotic species | an organism that humans bring to a new place |
Created by:
zennelau
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