The master ethical issue lurking behind most forms of enhancement is:

One drawback of a dermal puncture for the laboratory is:

A. the large amount of blood collected. B. the blood is always hemolyzed. C. the small amount of blood collected. D. the method may not work for small children.

Extending from the cell body of a neuron are axons and dendrites, which are two types of nerve ________. 

Fill in the blank(s) with the appropriate word(s).