Fact 1: Cells vary in size as well as shape, but all cells are very small.

Fact 2: All cells are microscopic in size.

Given the two facts above, answer the question "Cells pretty much al share this one characteristic:" with the following options: 
- sensory neurons
 - voltage
 - aerobic capacity
 - microscopic
 - eukaryotic
 - bacteria
 - prokaryotic
 - layers of fat


 

    microscopic     