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Ecology Chapter 2

QuestionAnswer
Producer An organism that can make its own food.
Consumer An organism that obtains energy by feeding on other organisms.
Herbivore A consumer that obtains energy by eating only plants.
Carnivore A consumer that obtains energy by eating other 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 organisms.
Decomposer An organism that gets energy by breaking down wastes and dead organisms, and return raw materials to the soil and water.
Food Chain A series of events in an ecosystem in which organisms transfer energy by eating and by being eaten.
Food Web The pattern of overlaping
Energy Pyramid A diagram that shows the amount of energy that moves from one feeding level to another in a food web.
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 A dry region that on average receives less than 25 centimeters of precipitation per year.
Rain Forest A forest that receives at least 2 meters of rain per year, mostly occurring in the tropical wet climate zone.
Emergent Layer The tallest layer of the rain forest that receives the most sunlight.
Canopy
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 other 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 day.
Deciduos 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 a waxy substance to reduce water loss.
Tundra An extremely cold, dry biome climate region characterized by short, col summers and bitterly cold winters.
Permafrost Permanently frozen soil found in the tundra biome climate region.
Biogeography The study of where organisms live and how they got there.
Exotic Species Species that are carried to a new location by people.
Dispersal The movement or organisms from one place to another.
Continental Drift The hypothesis that the continents slowly move across Earth's surface.
Evaporation The process by which molecules at the surface of a liquid absorb enough energy to change to a gas.
Condensation The change in state from a gas to a liquid.
Precipitation Any form of water that falls from clouds and reaches Earth's surface as rain, snow, sleet, or hail.
Nitrogen Fixation The process of changing free nitrogen gas into nitrogen compounds that plants can absorb and use.
Estuary
Intertidal Zone
Neritic Zone
Created by: ocp201011410