Ch. 3: The Biosphere Section 3-1: What is Ecology?

1
Ch. 3 The Biosphere Section 3-1 What is
Ecology?
2

• Ecology-
• study of relationships between organisms
• their environment

3

• Levels of Organization
• Individual- one single living thing
• Population- all members of
• one species living in a
• given area interacting
• with each other

4
Community- interacting populations in a given
areaEcosystem-community plus physical
environment (living nonliving)
5

• Biome group of ecosystems with same climate and
  similar dominant communities

6

• Biosphere- portion of Earth in which living
  things exist