Junior Secondary · 8-9 · Science

Ecosystems & Environmental Science

40 practice questions available.

What is an ecosystem?

A community of living organisms interacting with each other and their physical environment

What is a food chain?

A sequence showing how energy passes from one organism to another through feeding relationships

What is a producer, in an ecosystem?

An organism, usually a plant, that makes its own food through photosynthesis

What is a consumer, in an ecosystem?

An organism that gets energy by eating other organisms

What is a decomposer, and why is it important?

An organism (like fungi or bacteria) that breaks down dead organic matter, recycling nutrients back into the ecosystem

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