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Natural Sciences and Technology Grade 6-A - Thunderbolt Kids

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A food web in asavanna.<br />

There are also dierent levels of consumers in an ecosystem:<br />

• Primary consumers are the herbivores which eat the plants,<br />

such as the mice <strong>and</strong> grass in this savanna food web.<br />

• Secondary consumers eat primary consumers.<br />

• Tertiary consumers eat the secondary or primary consumers.<br />

QUESTIONS<br />

1. Study the food web <strong>and</strong> identify the producers <strong>and</strong> the<br />

consumers. Distinguish between the primary, secondary<br />

<strong>and</strong> tertiary consumers. You can write your answers (in<br />

pencil in case you make a mistake) on the food web<br />

illustration.<br />

2. Below is another food web consisting of plants, fish <strong>and</strong><br />

birds. What kind of ecosystem do you think this foodweb<br />

describes?<br />

Chapter 5. Ecosystems <strong>and</strong> food webs<br />

89

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