1. Producers, Consumers, Decomposers
Its all about what you eat!

2. An organism is ….. Any independent living thing
Can be as small as a single celled bacteria
Or as large as a whale!

3. The three categories of the food chain are…..
Producers
Consumers
Decomposers
They are all depend on each other.

4. Producers Are-
Producers get their food and energy from the sun. (PLANTS)
They make their food through a process called photosynthesis.

6. Consumers
Consumers need to eat their food to get energy. (ANIMALS)

7. Types of consumers are There are THREE types of Consumers
Carnivores
Herbivores
Omnivores.
Its still all about what you eat!

8. Carnivores only eat meat (other animals)

10. Herbivores eat only plants.

12. Omnivores eat both meat (animals) and plants.

14. Stop…Review…Check… Turn to your partner and tell them the meaning of each word. Also give two examples of each.
Carnivore:
Herbivore:
Omnivore:

15. Decomposers
Decomposers eat dead things and turn them back into dirt, or soil.
Examples:
Mushrooms
Worms
Bugs

17. What would the world look like without decomposers (bacteria and fungi?

18. How they relate .

19. Stop…Review…Check… Turn to your partner and tell them the meaning of each word. Also give two example of each.
Producers:
Consumers:
Decomposers:

20. Bear Shark Rabbit Cherry tree Mushroom Human Tulip (flower) 8. Panther
On a sheet of note book paper describe the following animals as either a producer, consumer or decomposer. For the consumers, make sure to include if they are a carnivore, herbivore or omnivore. Please use complete sentences! (Ex: A _____ is a ______.)
Bear
Shark
Rabbit
Cherry tree
Mushroom
Human
Tulip (flower)
8. Panther
9. Giraffe
10. Worm

21. FOOD CHAIN ORDER CARNIVORES LIONS, EAGLES TERTIARY CONSUMERS
WOLVES, SNAKES
SECONDARY CONSUMERS
PRIMARY CONSUMERS
HERBIVORE
DEER, BUNNY
PRODUCERS
PLANTS

22. Categories in food chain

24. What do decomposers eat?
Typically, food webs go like this:
remember: decomposers receive energy from all other organisms in an ecosystem
CONSUMER (CARNIVORE)
CONSUMER (OMNIVORE)
CONSUMER (HERBIVORE)
DECOMPOSER
PRODUCER

25. ENERGY IN AN ECOSYSTEM What is an energy pyramid?
What is a trophic level?

26. ENERGY PYRAMIDS
Energy pyramids show the transfer of energy through a food chain
the pyramid is made of levels
FISH
SNAIL
GRASS

27. The further along the food chain you go, the less food (and hence energy) remains available.
                                                                                 
TROPHIC LEVEL = PYRAMID OF ENERGY
Where do producers get their energy from?
Which of the above categories has the highest food energy?

28. Why is there less food energy available at the top of the pyramid?
Because most of the energy gets lost into the environment at each link.
90 % of the energy is lost to the environment as HEAT
10% of the energy is transferred

29. Energy pyramid

30. A producer receives all the energy in an ecosystem
100% 1%
Secondary consumers
10%
Primary consumers
Producers

31. TROPHIC LEVELS A trophic level is:
a step in the transfer of energy through an ecosystem
a level in an energy pyramid
Secondary
Consumers
1 %
10 %
Primary
Consumers
Different trophic levels:
producer
consumer
primary, secondary, tertiary, quaternary
100 %
Producers

32. ENERGY PYRAMIDS Energy is lost with each transfer in a food chain
90% of the energy available at a level is released to the environment as heat
10% of the energy is incorporated or used
Only about 10% of the energy from a previous level is passed on to the consumer

33. FOOD WEBS
A food web shows all feeding relationships in an ecosystem (made of many food chains)

35. Which one will be impacted most by removing coyote
lion
hawk
coyote
rabbit
grass

36. Check for understanding
what is the source of energy for producers?
what is the source of energy for primary consumers?
what is the source of energy for decomposers?
omnivores eat both _______ and _______
herbivores eat ________
carnivores eat _______________
bacteria, fungi are examples of __________

37. percent of energy for primary consumers is _______ %
percent of energy for secondary consumers is ________ %
from one link to the other link in a food chain only 10% of the energy is transferred the rest of the energy (the other 90%) is lost as _________. This results in _________ organism at the lower levels and __________ organisms at the higher level