6.9k views
5 votes
What medullary index indicates a human hair?

A. 0.256
B. 0.516
C. 0.653
D. 0.733

User Idarryl
by
8.2k points

1 Answer

5 votes
The medullary index of human hair is less than 1/3. 1/3 in decimal form is 0.3333.

Among the choices, only A. 0.256 is less than 1/3. Thus, it is the medullary index the indicates a human hair.
User Monisola
by
7.9k points