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Ecosystems

5th grade Ecosystems Vocabulary

TermDefinition
Biotic Factors A living thing as an animal or plant, that influences or affects an ecosystem
Abiotic Factors A nonliving condition or thing, such as climate or habitat, that influences or affects an ecosystem and the organisms in it
Producers An organism, usually as a plant, that is able to produce its own food from inorganic substances
Consumers An organism, usually an animal, that feeds on plants or other animals
Decomposers An organism, usually a bacterium or fungus, that breaks down the cells of dead plants and animals into simpler substances
Herbivore Animals that get their energy by only eating producers or plants
Carnivore Animals that get their energy by only eating other consumers
Omnivore Animals that get their energy by only eating both producers (plants) and consumers (animals)
Predator Any organism that exists by preying on other organisms
Prey An animal hunted or seized for food, especially by a carnivorous animal
Terrestrial Ecosystem A land-based community of organisms
Aquatic Ecosystem An ecosystem in a body of water
Food Chains The path of food energy from one organism to another in an ecosystem
Food webs Overlapping food chains with different pathways for the flow of food energy in an ecosystem
Energy Pyramid A diagram that shows the amount of energy passed on at each level of a food chain
Competition The struggle of organisms against each other to get the same resource
Natural Resource Materials in the environment that useful to people
Population All the organisms of the same species that live in the same place at the same time
Community Populations of different kinds of organisms that live in the same place at the same time
Habitat The environment where an organisms live
Estuary A place where fresh water from a river empties into the ocean and mixes with it
Brackish Slightly salty, as is the mixture of river water and seawater in estuaries
Created by: 8496795152
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