Follicles genetically vary, producing flattened hairs which are curly, or round hairs which are straight.
(Follicles; genetically vary; ) (Follicles; producing; flattened hairs which are curly, or round hairs) (flattened hairs; are; curly, or round hairs) (round hairs; are; straight)
Follicles Follicles flattened hairs round hairs
genetically vary producing are are
flattened hairs which are curly, or round hairs
curly, or round hairs
straight