I can be straight or not
I can be flat or round
I have three layers
The rounder I am – the straighter I am
I can be a person’s trademark
I can be chemically challenged
Hair
Straight hair is round in shape
Wavy or curly hair is flat in shape (the curlier the hair the flatter)
Hair consists of 3 layers –
Cuticle (outer layer)
Cortex (second layer)
Medulla (center layer)
Chemically challenged – permed, tinted, bleached, etc.