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Ch. 11 Getting Along McGraw-Hill Science
Places to Live/ Food/ Roles For Living Things
23
Science
4th Grade
02/22/2011

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Cards

Term
ecosystem
Definition
all the living and non-living things in an environment
Term
community
Definition
all the living things in an ecosystem
Term
population
Definition
all the members of a certain type of living thing in an area
Term
habitat
Definition
the place where a plant or animal naturally lives and grows
Term
producer
Definition
an organism that makes its own food
Term
consumer
Definition
an organism that eats producers or other consumers
Term
food chain
Definition
a series of organisms that depend on one another for food
Term
decomposer
Definition
an organism that breaks down dead plant and animal matter
Term
food web
Definition
several food chains that are connected
Term
energy pyramid
Definition
a diagram that shows how energy is used in an ecosystem
Term
carbon dioxide & oxygen cycle
Definition
the exchange of gases between producers and consumers
Term
parasite
Definition
an organism that lives in or on another organism
Term
host
Definition
the organism a parasite lives in or on
Term
nutrients
Definition
substances that your body needs for energy and growth
Term
carbohydrates
Definition
substances used by the body as its main source of energy
Term
fats
Definition
substances that are used by the body as long-lasting sources of energy
Term
protein
Definition
substances that the body uses for growth and repair of cells
Term
fiber
Definition
material that helps move wastes through the body
Term
digestion
Definition
the process of breaking down food
Term
taste buds
Definition
thousands of cells on your tongue that sen the signals for sweet, sour, bitter, and salty to your brain
Term
saliva
Definition
a liquid in your mouth that helps soften and break down food
Term
stomach
Definition
part of your body with walls made of strong muscles that squeeze and mash food
Term
small intestine
Definition
a tube-like part of your body where most digestion takes place
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