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Evaporation Process by which molecules of liquid water absorb energy and change to a gas.
Precipitation Any form of water that falls from clouds and reaches the earth’s surface: rain, snow, sleet, hail.
Condensation Process by which a gas changes to a liquid.
Nitrogen Fixation Process of changing free nitrogen gas into nitrogen compounds that plants can absorb and use.
Producer An organism that can make its own food.
Consumer An organism that obtains energy by feeding on other organisms.
Herbivore Consumers that only eat plants.
Carnivore Consumers that only eat animals.
Omnivore Consumers that eat plants and animals.
Scavenger A carnivore that feeds on the bodies of dead organisms.
Decomposer Organisms that break down biotic wastes and dead organisms and return the raw materials to the ecosystem.
Food Chain A series of events in which one organism eats another and obtains energy
Food Web 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 in a food web.
Organism A living thing
Habitat An environment that provides the things a specific organism needs to live, grow and reproduce.
Biotic Factor Parts of a habitat that are living, or once living, and interact with an organism.
Abiotic Factor Nonliving parts of an organism’s habitat.
Species A group of organisms that can mate and produce offspring that can also mate and produce offspring
Population All members of one species living in an area
Community All the different populations that live together in an area
Ecosystem The community of organisms that live in a area, along with their nonliving environment.
Ecology Study of how organisms interact with each other and with their environment.
Created by: superstephens