Chapter 4 Cell Structure. I. Cell Theory (4.1) Hooke first observed cells 1665 Leeuwenhoek first observed live cells. 1838-9 Schleiden and Schwann.
Chapter 3 Cell Structure. I. History of Cells Cells were first observed only after microscopes were invented in the 1600s Robert Hooks, “The Cell Guy”
The functions of the organism are divided up among its parts (organs and organ systems). All the parts cooperate to carry out all the functions of the.
