A food chain always starts with a producer. A producer is an organism that makes its own food. Most food chains start with a green plant, because plants make their own food by photosynthesis.
The world is interconnected, and what happens at lower levels eventually makes its way to the top. Scientists sound alarm ...
All organisms in an ecosystem depend on each other. Food chains show the flow of energy from one organism to another. Food chains show the feeding relationships between organisms. Food webs show ...
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