Question

Independent Practice

Which are the levels of organization in order of smallest to largest?


A.
organism, population, community, ecosystem


B.
ecosystem, organism, population, community


C.
organism, population, ecosystem, community


D.
ecosystem, community, population, organism

Answer 1

The correct order of levels of organization from smallest to largest is:

**A. organism, population, community, ecosystem**.

In this order:
- **Organism** is an individual living being.
- **Population** is a group of organisms of the same species living in a specific area.
- **Community** is made up of different populations of species that live together in a defined area.
- **Ecosystem** includes all the living organisms (community) in addition to their physical environment (abiotic factors) in a given area.