1. KEY CONCEPT Life in an ecosystem requires a source of energy.

2. Producers provide energy for other organisms in an ecosystem.
Producers get their energy from non-living resources.
Producers are also called autotrophs because they make their own food.

3. Producers provide energy for other organisms in an ecosystem.
Consumers are organisms that get their energy by eating other living or once-living resources.
Consumers are also called heterotrophs because they feed off of different things.

4. Almost all producers obtain energy from sunlight.
Photosynthesis in most producers uses sunlight as an energy source.
Chemosynthesis in prokaryote producers uses chemicals as an energy source.
carbon dioxide + water +
hydrogen sulfide + oxygen
sugar + sulfuric acid

5. An organism that makes its own food is called a
Consumer
Producer
Heterotroph
Chloroplast

6. A moose is considered to be a consumer because it
Gets energy by eating other resources
Makes its own food
Forms carbohydrates using chemicals
Uses sunlight for energy

7. The basis for the energy in an ecosystem is provided by
Consumers
Heterotrophs
Chemosynthesis
Producers

8. Most producers get energy from the sun using the process of
Respiration
Consumption
Photosynthesis
Chemosynthesis

9. Chemosynthesis is the process in which organisms
Form carbohydrates using chemicals
Get energy by eating other organisms
Make chemicals that absorb sunlight
Use energy from the sun to form carbohydrates