Download Ecosystem

Ecosystems
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Habitat- An environment that provides the things
the organism needs to live, grow, and reproduce.
An organism obtains food, water, shelter, and
other things it needs to live, grow, and reproduce
from its environment.
Organisms live in different habitats because
they have different requirements for survival.
Write a few sentences describing the habitat of
your favorite wild animal.
Biotic Factors-The living parts of a habitat.
List five to seven biotic factors in a whitetail
deer’s habitat.
Abiotic Factors
• Abiotic factors are the nonliving parts of an
organism’s habitat.
• Includes water, sunlight, oxygen,
temperature, and soil.
Levels of Organization
• Populations- All members of one species
in a particular area are referred to as a
population.
• A species is a group of organisms that are
physically similar and can mate with each
other and produce offspring that can also
mate and reproduce.
Levels of Organization
• Community-All the different populations
that live together in an area.
• List as many species within a forest
ecosystem to define a community.
• To be considered a community, the
different populations must live close
enough together to interact.
Ecosystem
• Ecosystem-The community of organisms that
live in a particular area, along with their nonliving
surroundings, make up an ecosystem.
• The order of organization within an ecosystem
from smallest to largest: Organism, which
belongs to a population that includes other
members of its species, population belongs to a
community of different species, and the
community and abiotic factors together form an
ecosystem.