LIFE SCIENCE

Detailed explanation-1: -The major levels of organization in the body, from the simplest to the most complex are: atoms, molecules, organelles, cells, tissues, organs, organ systems, and the human organism. See below Figure 1.1. 1 .

Detailed explanation-2: -The human body has many levels of structural organization. The simplest level is the chemical level, which includes tiny building blocks such as atoms. Cells are the smallest functional units of life.

Detailed explanation-3: -Level 1: Cells The first and most basic level of organization is the cellular level. A cell is the basic unit of life and the smallest unit capable of reproduction. While cells vary greatly in their structure and function based on the type of organism, all cells have a few things in common.

Detailed explanation-4: -Summarizing: The major levels of organization in the body from the simplest to the most complex are: atoms molecules organelles cells tissues organs organ systems and the human organism.

Detailed explanation-5: -The most complex level of organization is the organismal level, where all eleven organ systems function in the human organism, the whole living person.