Grade 9 Ecology Practice Exam

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Which of the following is a biotic element?
Correct Answer:
Plants
Explanation:
Biotic elements are the living parts of an ecosystem. Plants fall into this category because they are living organisms that grow, reproduce, and interact with other living things. The other options—sunlight, water, and wind—are non-living resources or forces that exist in the environment but are not organisms themselves, so they’re abiotic factors. Plants not only rely on energy from sunlight and water for growth, but they also provide food and habitats for other organisms, making them a key living component of ecological systems.

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