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Topic 5.1 Communities and Ecosystems.

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Presentation on theme: "Topic 5.1 Communities and Ecosystems."— Presentation transcript:

1 Topic 5.1 Communities and Ecosystems

2 5.1.1 Define…

3 5.1.2 Distinguish between autotroph and heterotroph

4 5.1.3 Distinguish between consumers, detritivores and saprotrophs
Detritivore: an organism that ingests non-living organic matter. Saprotroph: an organism that lives on or in nonliving organic matter, secreting digestive enzymes into it and absorbing the products of digestion. Consumer: an organism that ingests other organic matter that is living or recently killed.

5 5.1.4 Describe what is meant by food chain

6 5.1.5 Describe what is meant by food web

7

8 5.1.10 Explain the energy flow in a food chain

9 5.1.10 Explain the energy flow in a food chain

10 5.1.12 Explain reasons for the shape of pyramids of energy
The narrowing shape illustrates the gradual loss of energy progressing along the links of a food chain to higher tropic levels

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