Introduction
The environment is made up of living and nonliving things that are different from, yet are mutually dependent on each other. They exist within an order that is responsible for everything that makes life possible. This order is called biological organization.
The term biological organization refers to the system of classification that arranges the levels of life in a hierarchical order. In this system, each level is more complex than the level that precedes it. However, the different levels—from the simplest to the most complex—are interdependent on each other. If any one of these components is not present, the order of life is greatly affected.
The different levels of the biological organization are as follows: cell, tissue, organ, organ system, organism, population, community, ecosystem, and biosphere.
