1.Hans and Zacharias Janssen created the first microscope.
2.Robert Hooke was the first to use the word “cell.”
3.Anton van Leeuwenhoek observed small organisms he called “animalcules.”
4.Matthias Schleiden theorized that plants are made of cells.
5.Theodor Schwann theorized that animals are made of cells.
6.Rudolf Virchow theorized that cells come from other pre-existing cells.
The amount of fat will affect its melting point
One electron is shared between ethane, H3-C-C-H3
<span>Water:
*can dissolve most substances
* contains dissolved minerals
*expands when it freezes</span>
**increase the partial pressure of oxygen
decrease the partial pressure of carbon dioxide
