1. Warm up – 7. What is the main idea of the following poem and what details and ideas in the poem back it up?
We are nature […] We become plants, trunks, foliage, roots, bark, We are bedded in the ground, we are rocks, We are Oaks. Tenderly will I use you curling grass, It may be you transpire from the breasts of young men The smallest sprout shows there is really no death. And as to you Corpse I think you are good manure, but that does not offend me, I smell the white roses sweet-scented and growing, I reach to the leafy lips, I reach to the polish’d breasts of melons. - Walt Whitman

2. Section 1, p
Chapter 5

3. Energy Flow in Ecosystems
What is the ultimate source of energy of almost all organisms on our planet?
The sun!!!

4. Energy Flow in Ecosystems
Can someone tell me what is the process of obtaining energy from sunlight?
Photosynthesis

5. Energy Flow in Ecosystems
Photosynthesis
The process by which plants, algae, and some bacteria use sunlight, carbon dioxide, and water to produce sugars and oxygen
Sugar
Molecules
are
known as
carbohydrates

6. Energy Flow in Ecosystems

7. Energy Flow in Ecosystems
Chlorophyll
The light trapping molecule needed for photosynthesis to occur

8. Energy Flow in Ecosystems
How does a coyote depend on the sun?

9. Energy Flow in Ecosystems
Producer
An organism that makes its own food
Also known as autotrophs
Auto - self
Troph - nourish
So self-nourishers or self-feeders.

10. Energy Flow in Ecosystems
Consumers
Organisms that get their energy by eating other organisms
Also called heterotrophs
Hetero – other, different
Troph - nourish
So nourishes on others,
other-feeders

11. Energy Flow in Ecosystems
All producers make their food using sunlight except for:
Bacteria deep in the ocean can use hydrogen sulfide to make their own food.
These are the producers of a dark, underwater ecosystem

12. Energy Flow in Ecosystems
Decomposers
Are consumers that break down dead organisms to get their food
De – separation 
Compose - to be the component elements of
So separation of the component elements

13. Energy Flow in Ecosystems

14. Energy Flow in Ecosystems
Four types of consumers:
Herbivore
Herb – pertaining to plants
Vor - eat
Plant eaters
Consumers that eat only producers

15. Energy Flow in Ecosystems

16. Energy Flow in Ecosystems
Carnivores
Carn – flesh
Vor – eat
Meat eaters
Eat other consumers

17. Energy Flow in Ecosystems

18. Energy Flow in Ecosystems
Omnivore
Omni – all, every
Vor – eat
Eaters of plants and animals
Eat both consumers and producers

19. Energy Flow in Ecosystems

20. Energy Flow in Ecosystems
Decomposer (you have the definition already)
Are consumers that break down dead organisms to get their food

21. Energy Flow in Ecosystems

22. Energy Flow in Ecosystems

23. Energy Flow in Ecosystems
Now we have learned how organisms get energy but what is the term that describes how these organisms use that energy?
Cellular Respiration

24. Energy Flow in Ecosystems
Cellular Respiration
The process by which cells produce energy from carbohydrates
Atmospheric oxygen combines with glucose to form water, carbon dioxide, and energy
Is NOT the same as respiration

25. Energy Flow in Ecosystems

26. Energy Flow in Ecosystems
How is energy transferred through an ecosystem?
Through
Food chains
Food Webs
Trophic Levels

27. Energy Flow in Ecosystems
Food Chain
A linear sequence in which energy is transferred from one organism to the next
Each organism eats the next

28. Energy Flow in Ecosystems
Food Web
A diagram that shows the feeding relationships between organisms in an ecosystem

29. Food Web

30. Energy Flow in Ecosystems
Trophic Level
One of the steps of energy transfer in a food chain/web/pyramid
Includes:
Producers
Primary consumers
Secondary consumers
Tertiary consumers

31. Energy Flow in Ecosystems
Only 10% of a trophic level’s energy is available to the next trophic level!!!

32. Energy Flow in Ecosystems