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20 Cards in this Set

  • Front
  • Back
host
the organism a patrasite lives in or on
natural resource
a material on Earth that is necessary or usefull to people
renewable resource
a resource that can be replaced or used over and over again.
nonrenewable resource
a resource that cannot be reused or replaced in a useful amount of time
pollution
what happens when harmful substances get into water, air or land
reduce
to make less of something
reuse
to use something again
recycle
to treat something so it can be used again
ecosystem
all the living and nonliving things in an environment
community
all the living things in an ecosystem
population
all the members of a certain type of living thing in an area
habitat
a place where a plant or animal naturally lives and grows
producer
an organism that makes its own food
consumer
an organism that eats producers or other consumers
food chain
a series of organisms tha depend on one another for food
decomposer
an organism that breaks down dead plant and animal material
food web
several food chains that are connected
energy pyramid
a diagram that shows how energy is used in an ecosystem
carbon dioxide and oxygen cycle
the exchange of gases between producers and consumers
parasite
an organism that lives in or on another organism