Question

1. which of the following is not part of an ecosystem?

cell
water
soil
rocks

Explanation:

An ecosystem consists of living (biotic) and non - living (abiotic) components. Water, soil, and rocks are non - living (abiotic) components of an ecosystem. A cell is the basic unit of life, and it is part of a living organism, not a direct component of an ecosystem.

Answer:

A. Cell