To explain: An ecosystem and name the central roles of producers in all ecosystems.
Introduction: All the organisms interact with each other and with the environment in order to survive. The branch of science that deals with the study of the interaction of organisms and nature is termed as ecology.

Explanation of Solution
An ecosystem is defined as a biological community wherein living organisms interact with one another and with the nonliving components around them. It may include one or more than one communities. Producers, consumers, and decomposers are the three main groups in the ecosystem. These groups are based on the food obtained by the organism. All these groups are interrelated in food chains and food webs. The central roles of producers in all ecosystems are as follows:
- • Producers such as photosynthetic organisms capture light energy from the cell and convert it into chemical energy.
- • They also produce essential organic materials for all members of the ecosystems.
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Chapter 24 Solutions
EBK HUMAN BIOLOGY
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