| A | B |
|---|
| scientific belief that 1).cells are the basic unit of all living things 2).cells perform all life functions, 3).cells come only from pre-existing cells | cell theory |
| the study of cells | cytology |
| all the living material that is in a cell | protoplasm |
| the basic unit of all living things | cell |
| many similar cells grouped together to perform a common function (examples: skin, blood) | tissue |
| one or more types of tissue grouped together to perform a common function (examples: stomach, heart) | organ |
| two or more organs grouped together to perform a common function (examples: digestive track, nervous system) | organ system |
| a complete living thing capable of performing all the processes of life; may be composed of many cells, tisues, organs and systems OR it may be one single cell capable of independent life | organism |
| an organism that consists of only one cell | unicellular organism |
| an organism that consists of many cells | multicellular organism |
| a living thing capable of independently performing all of life's functions, which has adapted beneficially to LIFE IN A COLONY of others of its same species | colonial organism |
| the connections between two or more adjacent ANIMAL cells (there are three types: tight, anchoring, and gap) which function in holding cells together to make a type of tissue | cell junctions |
| tube-like passageways that are in the connections between two or more adjacent PLANT cells | plasmodesmata |
