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Science - Chapter 1 Les. 4/5 Vocab
Ecosystems and Food Chains
14
Science
4th Grade
09/25/2012

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Term
ecosystem
Definition
living and nonliving things in an environment and how they interact
Term
community
Definition
the LIVING part of eco.
Term
population
Definition
ONE TYPE of org. living in a community
Term
habitat
Definition
org's home
Term
producer
Definition
org. that makes its own food (plants)
Term
consumer
Definition
org. that eats producer or other consumer
Term
decomposer
Definition
org. that breaks down waste and dead org.
Term
food chain
Definition
steps in which org. gets the food it needs to survive
Term
food web
Definition
pattern that shows how food chains are related
Term
ecology
Definition
the study of how living and non-living things get along
Term
drought
Definition
a long period of time with little or no precipitation
Term
overpopulation
Definition
a depletion of resources that happens when too many of one kind of living thing lives in an ecosystem
Term
pollution
Definition
the adding of harmful substances to the water, air, or land
Term
acid rain
Definition
harmful moisture that falls to Earth after being mixed with wastes from burned fossil fuels
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