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Living Earth
Chapter 24, Section 1
The Biosphere
Biosphere –Part of Earth that
supports life.
• Includes:
• upper part of the
crust
• all water
• the atmosphere
Ecosystems
Ecosystem –All the organisms
living in an area
and the nonliving
parts of their
environment.
Ecosystems
Ecology
–Study of the
interactions that
occur between
organisms and their
environments.
Ecosystems
Ecologist –Scientist who
studies ecology.
Populations
Population –All the organisms
in an ecosystem
that belong to the
same species.
Populations
Community –All the
populations living
in the same
ecosystem.
Habitat
Habitat –The place in which
an organism lives.