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Ecology 2

Ecology chapter 2 vocab

TermDefinition
producer an organism that can make its own food
consumer an organism that obtains energy by eating only animals
herbivore a consumer that obtains energy by only eating plants
carnivore a consumer that obtains energy by only eating animals
omnivore a consumer that obtains energy by eating both plants and animals
scavenger a carnivore that feeds on the bodies of dead or decaying animals
food chain the series of events in an ecosystem in which organisms transfer energy by eating and being eaten.
food web the pattern of overlapping feeding relationships or food chains among the various organisms in an ecosystem
decomposer an organism that gets energy by breaking down biotic wastes and dead organisms and returns
energy pyramid a diagram that shows the amount of energy that moves from one feeding level to another in a food web
evaporation The process by which molecules of liquid water absorbs energy and changes to a gas
condensation The process by which a gas changes to liquid
precipitation rain, snow, sleet, or hail
nitrogen fixation The process of changing free nitrogen gas into nitrogen compounds that plants can absorb and use
biome A group of ecosystems with similar climates and organisms
climate The average annual conditions of temps, precipitation, winds, and clouds in an area.
desert A dry region that on an average receives less than 25 centimeters per year
rain forest A forest that at least 2 meters of rain per yer mostly occuring in the tropical wet climate zone
emergent layer The tallest that receives the most sunlight of the rainforest layer
canopy A leafy roof formed by tall trees in a rain forest
understory A layer of shorter trees and vines that grow in the shade of a forest canopy
grassland An area populated mostly by grasses and other nonwoody plants that receives 25 to 75 centimeters of rain per year
savanna A grassland located close to the equator that may include shrubs and small trees and receives as much as 120 centimeters of rain per year
deciduous trees A tree that sheds its leaves durring a particular seasonand grows new ones each year
boreal forest Dense forest of evergreens located in the upper regions of the Northern hemisphere
coniferous tree A tree that produces its seeds in cones and that has a needle shaped leaf coated in a waxy substance that reduces water loss
tundra An extremely cold dry biome climate region characterized by short cool summers and bitterly cold winters
permafrost permanently frozen soil found in the tundra biome climate region
neritic zone the area of the ocean that extends from the low-tide line out to the edge of the continental shelf
intertidal zone An area between the highest high-tide line on land to point on the continental shelf exposed by the lowest low-tide line
estuary A kind of wetland formed where freshwater from rivers mixes with salt water from oceans
biogeography The study of where organisms live and how they got there
dispersal The movement of organisms from one place to another
exoitic species Species that are carried to a new location by people
continental drift A hypothesis that the continents slowly move across the Earth's surface.
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Created by: arw201198622