The document outlines the levels of biological organization from smallest to largest: the molecular level comprises atoms and molecules like DNA; the cellular level is made up of cells, the basic unit of life; tissues are groups of similar cells that perform specific functions; organs consist of different tissue types working together; and organ systems involve multiple organs collaborating to carry out important functions like digestion, respiration, and circulation.

1. The Levels of
Biological
Organization:


2. *MOLECULAR LEVEL =>
•from atoms molecules to
complex molecules like DNA


3. *CELLULAR LEVEL =>
•The CELL is the smallest unit of
life capable of carrying out all the
functions of living things.

(all living things are made of cells)

4. *TISSUE LEVEL =>
•A group of similar cells that
perform a specific function is a
TISSUE.


5. *ORGAN LEVEL =>
•Several different types of tissues
that function together to do a
certain job is an ORGAN.


6. HEART = ?
muscle tissue
nerve tissue
connective tissue
fat
etc...
