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IGCSE Biology Extended19.4.3—Ecosystem as a unit containingTopic Practice

19.4.3—Ecosystem as a unit containing

• Describe an ecosystem as a unit containing the community of organisms and their environment, interacting together

Question 6(a)

[Maximum number: 2]

Coral reefs are important ecosystems.

Complete the sentence about ecosystems.

An ecosystem can be defined as a unit containing the of organisms and their interacting together.

Fig. 6.1 is a photograph of a coral reef.

Fig. 6.1

Fig. 6.1

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