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2.3 SYNTHESIZING FOOD WEB.

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Presentation on theme: "2.3 SYNTHESIZING FOOD WEB."— Presentation transcript:

1 2.3 SYNTHESIZING FOOD WEB

2 4.3 Food Web

3 LETS WATCH THE VIDEO 1st!

4 Bacteria and fungi (decomposers)
Paddy plants (producer) Rat Snake Hawk (primary consumer) (secondary consumer) (tertiary consumer) Bacteria and fungi (decomposers)

5 1.Producers are all green plants that make food through photosyntesis.
Consumer are animals that eat plants or animals. Decomposers are organisms that decompose dead organisms (animals or plants) and change them into simple substances. Example decomposer are bacteria and fungi

6 What about decomposer? 6. Decomposers break down dead animal and plant materials into simple substances which can be used again by green plants.

7 2. A food web consists of several food chain that are interlinked.
1. What is a food web? beatle bird grass grasshopper eagle caterpillar chicken 2. A food web consists of several food chain that are interlinked.

8 Example of food web

9 Food web in a forest

10 Use the list of organisms below to form a food web
Paddy plant Grasshopper Bacteria and fungi Rat Frog Snake Bird Caterpillar

11 Use the list of organisms below to form a food web
Paddy plant Grasshopper Bacteria and fungi Rat Frog Snake Bird Caterpillar Rat Snake Paddy plant Grasshopper Frog Caterpillar Bird Bacteria and fungi

12 Level 4 (tertiary consumer)
grass grasshopper (3 000) frogs (150) snakes (5) ( ) Level 4 (tertiary consumer) 5 snakes Level 3 (secondary consumer) 150 frogs Level 2 (primary consumer) 3 000 grasshopper blades of grass Level 1 (producer)

13 quizzes

14 quizzes 2

15 Use the list of organisms below to form four food web

16


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