1. FOOD CHAINS AND WEBS!

2. What is a Food Chain?
A food chain is the path by which energy passes from one living thing to another.

3. Producers (Autotrophs)
Prodcers make their own food using PHOTOSYNTHESIS

4. Consumers (Heterotrophs)
Consumers hunt, gather, and store food because they cannot make their own.

5. Four Types of Consumers
Herbivores (plant eaters)
Rabbits, squirrels, some birds, most insects
Carnivores (Meat eaters)
Wolves, predatory cats, hawks, eagles
Omnivores (both plants and meat)
Humans, bears
Scavengers (eat dead things)
Vultures

6. Decomposers
Microorganisms that are able to break down large molecules into smaller parts
Decomposers return the nutrients that are in a living thing to the soil
Examples

7. Terrestrial Food Chain

8. Aquatic food chain

9. What is a Food Web?
A more realistic way of looking at the relationship of plants and animals in an environment
Several food chains linked together

10. http://www. mrpdarling

11. Food Webs
How many food chains can you make from this food web?

12. 1. Which organisms are the producers?
_________________ _________________
2. Identify the consumers... C – Carnivore O – Omnivore H – Herbivore P - Planktivore
Food Web Graphic -

13. #3 What would happen if the mussels were to die out due to a disease?
How would the zooplankton be affected if the fish population were to increase?
How would the whelk population be affected if crabs were removed?