Respuesta :
The structural levels, smallest to largest, for the human body are:
atoms; molecules; cells; tissues; organs; organ systems
The human body is organized at different organizational levels which helps in simplifying the various functions that the body has to perform.
All living and nonliving things are made up of atoms. Atoms are considered to be the smallest unit from which a substance is made.
Atoms join together to make molecules. When different molecules join, they form the cells. Cells are considered to be the basic building blocks of life.
A group of cells that works together to achieve a particular function forms the tissues. For example, nervous tissue, muscular tissue, etc.
A group of tissues works together to form an organ in the human body such as the stomach, brain, etc.
When different organs work together to perform a function, then these are referred to as organ systems. For example, the excretory system, the circulator system, etc.
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