brady138 brady138
  • 04-01-2019
  • Health
contestada

A blackhead is an accumulation of oily material produced by what?

Respuesta :

alleah77
alleah77 alleah77
  • 04-01-2019

The oily material is produced by the sebaceous glands.

The dark black color, however, is not caused by a buildup of dirt, as many people believe. It is actually a build of of excess   melanin that is trapped in  a gland.

Answer Link

Otras preguntas

What is a direct combination reaction?
A child is standing across the street from his apartment . His mother is on their balcony . The angle of elevation between the child's eyes and his mothers eyes
is it possible for a distance versus-time graph to be a vertical line?
A 1 digit number and a 3 digit number have a sum of 205.  The same two number have a difference of 195, a product of 1,000 and a quotient of 40.  What are the t
If the speed of an object is tripled, its kinetic energy will be
When was William Shakespeare born
How does transpiration play a  role in the water cycle ?
What is Sir Francis Drake hardships
.is a pot holder a conductor or a insulator
Was the Gold Rush a good or bad thing for the United States?