1. Ecology Chapter 2 Section 3
ENERGY FLOW
Ecology Chapter 2 Section 3

2. FOOD CHAIN
Energy moves from one organism to another when one organism becomes food for another organism.

3. Energy Transfer Food chain
Producers are the first step in a food chain
Primary consumers - Animals that consume producers (also known as _______) are the second step
Secondary consumers – animals that eat other consumers (also known as _______ and ________) are the third step.

4. Producer
grass

5. Producer – primary consumer grass - deer

6. Producer – primary consumer – secondary consumer grass - deer - cheetah
Notice how the arrows are pointing? Why do you think it is pointing that way?

7. On your food chain write the organisms’ name and label them producer, primary consumer, and secondary consumer.

8. FOOD WEB
A model that shows all the possible feeding relationships among the organisms in a community.
A food web is made up of many different food chains.