1. Cycles in Matter Describe the short-term carbon cycle.
Describe the long-term carbon cycle.
How is atmospheric nitrogen converted into ammonium fertilizer that is usable for plants? Besides ammonia, what is another usable form of nitrogen?
How do animals obtain nitrogen?
What is ammonification? Denitrification?
Explain the phosphorus cycle.
What negative impacts are humans making on each of the cycles?

2. EQ: How does Energy Flow Through an Ecosystem
Food Chains, Food Webs, Energy Pyramids

3. 6CO2 + 6H2O + sunlight C6H12O6 + 6O2
Begins with the SUN
Photosynthesis
6CO2 + 6H2O + sunlight C6H12O6 + 6O2

4. Photosynthesis ENERGY is stored in glucose Glucose is stored as starch
Producers

5. Niche of a Producer
Captures energy and transforms it into organic, stored energy for the use of living organisms.
May be photoautotrophs using light energy (e.g. plants)
May be chemoautotrophs using chemical energy (e.g. some archaebacteria)

6. Habitat of Photoautotrophs
On Land
Plants
In The Sea
Algae
Tidal Flats & Salt Marshes
Cyanobacteria

7. Tube Worms living in Black Smoker rely on archaebacteria for energy

8. Quick Thinks
What is a producer?
How is energy stored in food?
What is the formula for photosynthesis?

9. 6O2 + C6H12O6 -->  6H2O + 6CO2 + energy
CELLULAR RESPIRATION is the chemical reaction that releases the energy in glucose.

10. Energy is passed on from producer to consumer (heterotrophs)

11. Types of Consumers first order (1st) or primary consumers -Herbivores
Second order or secondary conumers – Could be a carnivore, an omnivore, a predator or scavenger
Detrivore

12. A consumer that eats a consumer that already ate a consumer:
Is called a 3rd order or tertiary consumer
May be a carnivore or a omnivore
May be a predator
May be a scavenger (detrivores)

13. Decomposers
Fungi & Bacteria

14. Food Chain Producer (trapped sunlight & stored food)
3rd Order consumer
2nd Order Consumer
1st order Consumer
4th Order Consumer
Producer (trapped sunlight & stored food)

15. Name the Producer, Consumers & Decomposers in this food chain:

16. The transfer of energy from the sun to producer to primary consumer then to higher order consumers can be shown in a FOOD CHAIN.

17. Energy Pyramids Show Available Energy

18. More Food Chains

19. Energy Pyramids Show
Amount of available energy decreases for higher consumers
Biomass decreases from one trophic level to the next
10%

21. Quick Thinks
Explain why food chains are rarely more than 4 or 5 organisms long?
What do pyramids show us?
What happens to energy that is stored in photosynthesis?
What percentage of energy is passed from one trophic level to the next?

22. Food Webs: Are interconnected food chains
They show the feeding relationships in an ecosystem

23. How Many Chains are in this web?

24. Identify the Producers, Consumers, & Decomposers:
Count the Food Chains!

25. Food Web Challenge – Individual assignment for a daily grade.

26. Ticket Out Quiz Identify the: 1. Producers 2. Primary Consumers
3. Secondary Consumers
4. Herbivores
5. Carnivores
6. Omnivores
7. What elements are missing from this food web?
8. How many food chains are in this food web?
9. Which organisms on the food chain represent the least amount of energy on the food chain?
10. What percentage of energy is transferred from one trophic level to the next?