Ecosystems

1
Habitat
An environment that provides the things an
organism needs to live, grow and reproduce
2
Biotic Factors
The living parts of a habitat
clown fish sea anemone
panda bamboo plants
3
Abiotic Factors
The non-living parts of a habitat

• Water
• Sunlight
• Oxygen
• Temperature
• Soil

4
Abiotic Factors
The non-living parts of a habitat
water temperature of water oxygen (dissolved in
the water)
oxygen (air) sunlight soil or dirt temperature

5
Putting it all together

• What basic needs are met by an organisms habitat?
• Food, water, shelter, and other things it needs
  to live.

6
Putting it all together

• Why do different organisms live in different
  habitats?
• Because different organisms have different needs
  for survival.

7
Putting it all together

• Using the word photosynthesis, explain why water
  and sunlight are two abiotic factors that are
  important to all organisms

8
Species
A group of organisms that are physically similar
and that can mate and produce fertile offspring.
9
Population
All the members of one species in a particular
area.
10
Community
All the different populations that live together
in an area.
11
Ecosystem
A community of organisms that live in an area
along with their non living surroundings
12
Ecology
The study of how living things interact with each
other and their environment.
13
Ecological Organization
Biome
Larger
Ecosystem
Community
Population
Smaller
Single organism
14
Putting it all together

• Would all the trees in a forest make up a
  population? Why or Why not?

15
Putting it all together

• What is the difference between a community and an
  ecosystem?

Community
Ecosystem
16
Putting it all together

• Why do ecologists study both the biotic and
  abiotic factors in an ecosystem?