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ITBS Level 11 Grade 5 Science
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Avg score: 67% • Most missed: “The food web shows two organisms eating the grass, but it doesn't show the grass…”

Directions: Use the information below and your knowledge of science to answer questions.

The following is a 'food web' showing the relationship among organisms in a certain ecosystem.


ITBS Level 11 Grade 5 Science
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4 Questions

1. Important parts of the ecosystem not shown in this food web are the organisms, such as mushrooms, that feed on dead animals and plants and help break them down. What is the term for such organisms?
2. The food web shows two organisms eating the grass, but it doesn't show the grass eating anything. Where does grass get its energy?
3. Which of the organisms shown is a primary consumer? 
4. Of which of the following organisms are there probably the smallest number?

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