 Stained Nuclei |  Stained microtubules |  |
|---|---|---|
 Blood cells(Mainly) red blood cells with a few white blood cells |  |  |
 |  |  Cheek cellsStained cheek cells |
 Sea urchin embryo |  |  Chicken embryo |
 Nerve chamberSciatic nerve of a Texas bullfrog suspended inside of a nerve chamber. |