Which part of the hair makes up 75-90% of the shaft?

What is the clear, hard outside covering of a hair called?

Which stage of hair growth lasts the longest?

This stage of hair growth is the transitional stage between the first and last stage.

Which of these is a natural fiber?

Which of these synthetic fibers is made from goat hair?

Forensic scientists find the medullary index of a hair to be greater than 1/2. What does this mean?

This is the row of cells running through the center of the hair shaft.

Which of these is not a stage of hair growth?

Where can DNA be found in a hair?

Which type of cuticle pattern do we find in human hair?

Which type of medulla is pictured here?

Which type of medulla is pictured here?

Which type of medulla is present in this hair?

Which phase of hair growth is the in-between phase where the hair is starting to lose it's blood supply and slows in growth?

Which of these is a synthetic fiber?

Which of these fibers is made from an insect?

Which of these is made from a mineral and is known to cause cancer?

Which of these is made from the hair of an animal?

Which natural fiber is used to make ropes and has a wide diameter?

Which of these natural fibers is the most common fiber?

Which natural fiber is used to make flotation devices?

Which of these is the first man made fiber?

This is the outer layer of skin.

This produces oils to lubricate and protect the cuticle of the hair.

On average, how fast does human hair grow per month?

Is hair color an example of class evidence or individual evidence?

Before rayon was produced, which type of fibers were used for everything?

Which part of the hair contains overlapping scales in different patterns?