1
The basic structural and functional unit of living organisms.
2
What something does.
3
A category of organisms made up of more than one cell and of different types of cells.
4
A collection of similar tissues joined together into a structure that performs specialized functions.
5
A self-contained living thing.
6
Having characteristics that allow specific functions to be performed.
7
A self-contained system within a larger system.
8
A group of interacting, interrelated, or interdependent elements forming a complex whole.
9
A mass of similar cells that perform a specialized function.