ECOSYSTEMS. 1. FOREST ECOSYSTEM 2. POND ECOSYSTEM.

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Presentation transcript:

ECOSYSTEMS

1. FOREST ECOSYSTEM

2. POND ECOSYSTEM

3. OCEAN ECOSYSTEM

4. GARDEN ECOSYSTEM

5. GRASSLAND ECOSYSTEM

6. RIVER ECOSYSTEM

FOOD CHAIN

 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.

 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 

FOOD WEB - is overlapping food chains

 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.