Answer:
Cellulose is the main substance found in plant cell walls and helps the plant to remain stiff and strong. Humans cannot digest cellulose, but it is important in the diet as a source of fibre. Cellulose is used to make clothes and paper.
Explanation:
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<span>Ideally, sustainable development should preserve the environment and ecosystems while being continually implemented. For example, solar energy is sutainable because you can't spend it by using it. Oil is unsustainable becasue it will run out and you can't replenish it in time. Wind energy is also sustainable.</span>
Answer:
Ecology is the study of the interactions between organisms and their environment.
Explanation:
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