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Grade 4 Ecosystems Review
Ecosystems Review from Grade 4 Standards
17
Science
5th Grade
04/04/2011

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Cards

Term
The way plants and animals interact with each other and with the non-living part of their environment is called
Definition
an ecosystem.
Term
An organism is
Definition
any living thing.
Term
Every organism goes through a pattern of growing, reproducing and dying.  This is called
Definition
a life cycle.
Term
Structural and behavioral adaptations in organisms are important because they
Definition
help organisms meet life needs.
Term
Structural adaptations are
Definition
physical characteristics of an organism.
Term
Behavioral adaptations are
Definition
types of activities an organism performs.
Term
The color of an animal helps it blend into the surrounding environment so that it is not detected by predators.  This is an example of a
Definition
physical adaptation.
Term
Some animals migrate to warmer climates in the winter.  This is an example of
Definition
a behavioral adaptation.
Term
The natural home that provides and organism with food, water, shelter and the space necessary for survival is the organism's
Definition
habitat.
Term
Everything an organism does and needs in its environment and the part that the organism plays in the food web is the organism's
Definition
niche.
Term
The gradual change of organisms to suit their environment is
Definition
adaptation.
Term
The flow of energy from the sun to producers to consumers and then back into the nutriet pool through decomposers is known as
Definition
a food web.
Term
Organisms, such as grass, that use the sun's energy to make food are
Definition
producers.
Term
Organisms that eat green plants or animals are
Definition
consumers.
Term
Organisms, such as fungi, that break down dead plants and animals and use them for food are
Definition
decomposers.
Term
An organism's niche in its community can
Definition
have many different organisms can occupy the same niche.
Term
An organism's niche
Definition
may change at different stages of the organism's life cycle.
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