Energy Flow in an Ecosystem

1
Energy Flow in an Ecosystem
2
Where does all energy originate from?

• a. The sun
• b. transformed into useable energy by producers.

3
2. What are producers?

• a. Organisms that transforms energy from the sun
  into useable forms
• b. done by photosynthesis
• c. Most producers are plants
• d. autotrophs

4
3. What are consumers?

• a. Organisms that cannot produce food from the
  suns energy
• b. They consume other organisms for food
• c. heterotrophs

5
4. What are the different kinds of consumers?
6
a. Herbivores plant eaters

• Cattle
• Deer

7
b. Carnivores meat eaters

• Felines
• Canines
• Snakes
• Sharks

8
c. Omnivores plants and animals

• Raccoons
• Humans
• Bears

9
d. Decomposers break down organic matter.

• Bacteria
• Fungi

10
5. What is a food chain?

1. illustrate how energy flows from one organism to
   the next.
2. Rule of ten. Each organism only receives 10 of
   the energy from the previous trophic level.

11
5. What is a food web?

• a. Illustrates how energy flows in an ecosystem
• b. Rule of ten

12
6. What is a food pyramid?

• a. Illustrates the relative amount of biomass at
  each level
• b. Biomass shrinks as the levels increase
• c. Rule of ten

13
7. What do food webs and pyramids illustrate?

• a. Law of conservation of energy
• Energy cannot be created nor destroyed, but it
  changes form