1. ECOSYSTEMS

2. 1. FOREST ECOSYSTEM

3. 2. POND ECOSYSTEM

4. 3. OCEAN ECOSYSTEM

5. 4. GARDEN ECOSYSTEM

6. 5. GRASSLAND ECOSYSTEM

7. 6. RIVER ECOSYSTEM

13. FOOD CHAIN

14.  Food Chain – is the transfer of energy  (food) from the producers to the series of consumers.  (It is composed of producers, consumers, and decomposers.)  The energy decreases as it is passed on from one organism to another.

15.  1.Autotrophs – producers (plants)  2.Heterotrophs – consumers (man and animals) a. First-order/Primary consumers (herbivores) b. Second-order/Secondary consumers c. Third-order/Tertiary consumers d. Fourth-order/Quaternary consumers 3.Microorganisms – decomposers 

16. FOOD WEB - is overlapping food chains

24.  Food/Energy Pyramid shows the amount of energy transferred from producers to several levels of consumers.  The producers make up the base of the food pyramid which contains the greatest amount of energy.  The amount of energy available from food decreases as one goes up to another level.