Q: Fact 1: All cells share some of the same structures and basic functions. Fact 2: Hair cells are also a type of skin cell. Given the two facts above, what shares some of the same structures and basic functions?

Options:
1). animals
2). sensory neurons
3). an organism's body
4). gravity
5). volume and h2o
6). acid and density
7). Veins and arteries.
8). hair and skin
The answer is:
8).