| A | B |
| class evidence | material that connects an individual or thing to a certain group |
| comparison microscope | a compound microscope that allows the side-by-side comparison of samples, such as hair or fibers |
| cortex | the region of a hair located outside of the medulla containing granules of pigment |
| cuticle | the tough outer covering of a hair composed of overlapping scales |
| hair follicle | the actively growing root or base of a hair containing DNA and living cells |
| individual evidence | a kind of evidence that identifies a particular person or thing |
| keratin | a type of fibrous protein that makes up the majority of the cortex of a hair |
| medulla | the central core of a hair fiber |
| melanin granules | bits of pigment found in the cortex of a hair |
| neutron activation analysis | a method of analysis that determines composition of elements in a sample |
| trace evidence | small but measurable amounts of physical or biological material found at a crime scene |