1. Ecosystems

2. Ecosystem
A set of relationships among the living resources, habitats, and residents of an area

3. When an ecosystem is healthy, scientists say it is __________
When an ecosystem is healthy, scientists say it is __________. This means it has all the elements it needs to survive. If an ecosystem doesn’t have all the elements it needs to survive, it is ____________.
stable
unstable

4. Habitat
The natural environment where an organism lives

5. Land Ecosystems
All the living organisms and their physical environment on a particular piece of LAND.

6. Examples of Land Ecosystems
Rainforests
Savannas
Deserts
Tundra
Grasslands
Woodlands
Deciduous Forests

7. Fresh Water Ecosystems
Ecosystems with fresh water.

8. Examples of Fresh Water Ecosystems
Rivers
Lakes
Streams
Ponds

9. Salt Water Ecosystems
Ecosystems with salt water.

10. Examples of Salt Water Ecosystems
Oceans
Gulfs
Bays

11. Rainforest
A forest of tall trees in a region of year-round warmth. Rains frequently.

12. _________ components are living organisms that affect an ecosystem
_________ components are living organisms that affect an ecosystem. _________components are non-living chemical and physical factors that affect an ecosystem.
Biotic
Abiotic