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Ecology Unit 2

Producer An organism that can make its own food.
Consumer An organism that obtains energy by feeding on other organisms.
Herbivore Consumers that eat only plants.
Carnivore Consumers that eat only animals.
Omnivore Consumers that eat both plants and animals.
Scavenger A carnivore that feeds on the bodies of dead organisms.
Decomposer Break down biotic wastes and dead organisms and return raw materials to an ecosystem.
Food Chain A series of events in which one organism eats another and obtains energy.
Food Web A more realistic way to show the flow of energy through an ecosystem.
Energy Pyramid 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 absorb energy and change to a gas.
Condensation The process by which a gas changes to a liquid.
Precipitation Any form of water falling from the sky.
Nitrogen fixation The process of changing free nitrogen into a usable form of nitrogen.
Biome A group of ecosystems with similar climates and organisms.
Climate The average annual conditions of temperature precipitation, winds, and clouds in an area.
Desert An area that receives less than 25 centimeters of rain per year.
Rain Forest Forests in which large amounts of rain fall year-round.
Emergent Layer Tallest layer of the rainforest that receives the most sunlight.
Canopy A leafy roof formed by tall trees in a rain forest.
Understory A layer of shorter trees and vines that grows in the shade of a forest canopy.
Grassland An area populated mostly by grasses and nonwoody plants that gets 25 to 75 centimeters of rain each 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 tree A tree that sheds its leaves during a particular season and 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 needle-shaped leaves coated in waxy substance to reduce 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.
Estuary A kind of wetland formed where fresh water from rivers mixes with salty ocean water
Intertidal Zone An area between the highest high-tide line on land to the point on the continental shelf exposed by the lowest low-tide line.
Neritic Zone The area if the ocean that extends from the low-tide line out to the edge of the continental shelf.
Biogeography The study of where organisms live and how they got there
Continental Drift The hypothesis that the continents slowly move across Earth's surface.
Dispersal The movement of organisms from one place to another.
Exotic Species Species that are carried to a new location by people.
Created by: aem2024000047



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