If you found a hair at a crime scene, which stage(s) of hair growth would most likely have skin cells with DNA? Choose all that apply.

Draw a hair with a coronal cuticle

Draw a hair with a stacked medulla.

Describe two differences between human and animal hair.

Give three examples of synthetic fibers

Give three examples of natural fibers

Draw an example of a woven fabric and a knit fabric.

You are testing a fiber. Pick one of the fibers from the lab and describe what tests and observations would PROVE that it was that fiber. Look over your results and see what specific pieces of data would narrow it down to just that one fiber. Include more than 1 piece of evidence!

You are testing another fiber. Pick a different one the fibers from the lab and describe what tests and observations would PROVE that it was that fiber. Look over your results and see what specific pieces of data would narrow it down to just that one fiber. Include more than 1 piece of evidence!

What is region that #2 is pointing at?

What is the middle region that #3 is pointing at?

What are the white blobs?

What is the outside layer called?

What are the little black dots that #6 is pointing at?