1. (b) the relationship between predators and prey
(1)
Energy Transfer
SOL LS 6c photosynthesis is the foundation of virtually all food webs
SOL LS 8 (a) relationships among producers, consumers, and decomposers in food webs
(b) the relationship between predators and prey

2. Photosynthesis- Producer- Consumer- Respiration- Decomposer-
Review
(1)
Photosynthesis-
Producer-
Consumer-
Respiration-
Decomposer-
6CO₂ + 6H₂O + SUN → C₆H₁₂O₆ + 6O₂
make their own food for energy
eat other organisms to get energy
C₆H₁₂O₆ + 6O₂ → 6H₂O + 6CO₂ + ATP
break down dead organic material for energy

3. Energy Review (3) THE SUN!! The water, carbon, nitrogen cycles
How do we obtain carbon, water, and nitrogen?
The water, carbon, nitrogen cycles
are important because they help us to get
components we need for energy.
Where does our energy originally come from? We can trace it all the way back to…
THE SUN!!
Photosynthesis is the FOUNDATION OF ALL FOOD CHAINS AND WEBS!
CO2 + H2O  C6H12O6 + O2
Carbon dioxide + water  sugar (glucose)+ oxygen

4. Discussion:Food Chains
(4)
Discussion:Food Chains
What is a chain?
A chain is a series of objects connected to each other

5. Food Chains (4) Definition?
A food chain is the sequence from a food source to the final consumer

6. Food Webs (6) What is a web? Woven or interwoven pattern
Complicated relationship

7. Food Webs (7) What is a food web?
Definition: all of the interrelated food chains in an ecological community.

8. What do the Arrows mean? (5) Arrows always show the transfer of ENERGY
The arrow points to the stomach where the food ends up (the consumer)

9. Energy Pyramid (8) Producers Tertiary Consumers Carnivores
Secondary Consumers
Carnivores
Primary Consumers
Herbivores
Producers
Why should you eat your fruits and vegetables?
What gives you more energy - eating vegetation or eating meat? Why?

10. Food Webs
(7)
Pick a food chain out of the web below.. Identify producers, primary, secondary, tertiary, quaternary consumers…

11. Energy Loss (9) Why is cow dung a better fuel than lion dung? 100% 10%1%
0.1%
A LOT of Energy is lost when you transfer the energy from one level to the next – as much as 90% or more for each transfer!