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Chapter 2

Science Vocab.

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