What would happen to ecosystems without producers in the food chain 1. Without producers, there would no food for consumers and decomposers. The food chain would collapse.

2. Without producers, only aquatic ecosystems and their food chains would exist.

3. Without producers, only consumers and decomposers of ecosystems would survive in the food chain.

4. Without producers, the food chain would only include plants such as trees and shrubs. The food chain would not contain consumers or decomposers.

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