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10 Cards in this Set

  • Front
  • Back
Ecosystem
all living an non living things that interact in one area
habitat
the place where an organism lives and that provides the things it needs
biotic
a living part of an ecosystem
abotic
a non living part of an ecosystem
populations
all the members of one species in a particular area
communities
all the different populations that live together in an area
ecology
the study of how living things interact with each other and their environment
Population density
the number of individuals in a specific area
direct observation
Count one by one
indirect observation
to observe tracks or other signs or organisms themselvs