Final answer:
In an ecosystem, biotic components are living organisms that interact with one another.
Explanation:
Biotic components in an ecosystem are living things. Among the options provided, leaf is a biotic component as it is a living organism that plays a role in the ecosystem's functioning by carrying out photosynthesis and contributing to the food web.
Learn more about Ecosystem Biotic Components here:
https://brainly.com/question/34270436
