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What is Heredity?

Chapter 2 Ecology

TermDefinition
Producer An organism that can make its own food.
Consumer An organism that obtains energy by feeding.
Herbivore Consumers that eat only plants.
Carnivore Consumers that only eat 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.
Food chain A series of events in which one organism eats another and obtains energy.
Food Web Consists of many overlapping food chains in an ecosystem.
Energy pyramid A diagram that shows the amount of energy that moves from one feeding level to another food web.
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 earths surface as rain, snow, sleet or hail.
Nitrogen fixation The process of changing free nitrogen gas into nitrogen compounds that plants absorb and use.
Biome A group of Ecosystems with similar climates and organisms.
Climate The Average annual conditions of temperature, precipitation and wind.
Desert A dry region that on average receives, less that 25 centimeters of precipitation per year.
Rain Forest A forest that receives 20 meters at ost of rain per year.
Emergent Layer The tallest layer of the rain forest which receives the most sunlight the most sunlight.
Canopy Underneath emergent layers can grow this. Trees about 50 feet high and that are leafy can form this.
Understory Form under canopy's. The forest floor is dark so, only a couple plants live there.
Grassland An area populated mostly by grasses and other non woody plants that get 25, to 75 inches of rain each year.
Savanna A grassland located close to the equator that may include shrubs and small trees.
Deciduous Tree A tree that sheds its leaves during a particular season.
Boreal Forest Dense forest of evergreens located in the upper regions.
Coniferous Tree A tree that produces its seeds in cones and that has a needle shaped leaves.
Tundra An extremely cold, dry biome climate region.
Permafrost Permanently frozen soil found in the tundra biome climate region.
Estuary A kind of wetland formed where freshwater from rivers mix with salty ocean water.
Intertidal Zone An area between the highest high-tide line on land to the point on the continental shelf.
Netric Zone The area of the ocean that extends from the low tide line out to the edge of the continental shelf.
Biogeography The study where organisms live and how they got there.
Continental drift The hypothesis that the continents slowly move across earths 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: 239ksn