5th grade ecosystem vocabulary

Created by deniseorand Teacher

5th grade ecosystem vocabulary

individual

a single organism in an environment

population

individuals of the same kind living in an environment

ecosystem

a community and its physical environment

habitat

the place a population lives in an ecosystem

niche

the role of a population in a habitat

producers

plants, they pass on the energy they capture from the sun in the form of living tissue

consumers

all organisms in the ecosystem that must eat to get the energy they need

food chain

shows how the consumers in an ecosystem are connected to one another according to what they eat

decomposers

consumers that break down the tissues of dead organisms such as mushrooms and bacteria

energy pyramid

shows the amount of energy available to pass from one level of a food chain to the next

competition

organisms engage in this type of "contest" for resources

symbiosis

a long-term relationship between two different organisms

instinct

a behavior that an organism inherits

learned behavior

behaviors learned from parents, not inherited from them

exotic

organisms that are nonnative to an area

extinct

when the last individual in the population dies, and the organism is gone forever

endangered

when an organism has a population so small that they are likely to become extinct

threatened

organisms likely to become endangered if not protected

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