Answer:
<em>1.) atom; tissue</em>
<em>2.) cell</em>
<em>3.) organ </em>
<em>4.) true</em>
<em>5.) atom</em>
<em>6.) Particle</em>
Organs that work together are grouped into organ systems. The organism level is the highest level of organization. An organism is a living being that has a cellular structure and that can independently perform all physiologic functions necessary for life.
The body has levels of organization that build on each other. Cells make up tissues, tissues make up organs, and organs make up organ systems.
Life processes of the human body are maintained at several levels of structural organization. The six levels of the structural organization are Chemical, cellular, tissue, organ, system and organism.
