Question

Choose the correct answers from the alternatives given :
Ecosystems are characterized by

• A. one way flow of energy through the biotic community of an ecosystem
• B. interactions of organisms among themselves and the physical and chemical environment
• C. cycling of materials from the abiotic environmnent through the biotic community and back to the abiotic environment
• D. All of the above

Answer 1

The correct option is D All of the above

The ecosystem is a self-regulatory and self-sustaining structural and functional unit of the biosphere containing a community of living beings and the physical environment, both interacting and exchanging materials between them. In an ecosystem, energy flow is unidirectional. So, the correct option is "all of the above".