brady138 brady138

04-01-2019
Health

contestada

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

Respuesta :

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 are van der waal forces in detail?

Round 1,129 to 2 decimal places.

According to Reference Table H, what is the vapor pressure of propanone at 45°C? (1) 22 kPa (3) 70. kPa(2) 33 kPa (4) 98 kPa

A sound wave traveling eastward through air causes the air molecules to (1) vibrate east and west (2) vibrate north and south (3) move eastward, only (4) move n

From the tone of Chief Joseph’s speech, “I Will Fight No More Forever,” you can infer that he has been pursued for a long time. a. True b. False

Why did parliament decide to pass four new Laws in the Massachusetts colonies in 1774?

Why do the two hemispheres of the brain control the opposite sides of the body?

Most profits from the global economy that emerged in the early 1900s went to a. industrialized nations of the West. b. local economies in Africa and Asia. c. Eu

Hydrocarbons are compounds that contain (1) carbon, only (2) carbon and hydrogen, only (3) carbon, hydrogen, and oxygen, only (4) carbon, hydrogen, oxygen, and

Even in Arts cluster there is a need for a. only an art degree.B. technology training. c. mostly unskilled labor. d. no new job seekers.