_____________ is a substance that has an effect on the skin shade of a person.

A. Keratin
B. Melatonin
C. Lymph
D. Sebum


Answer: B

Health Professions

You might also like to view...

Which of the following is a function of skeletal muscle?

A) To produce movement of the skeleton B) To maintain body temperature C) To maintain homeostasis D) Both A and B

Health Professions

Water spray fixed systems provide protection to all of the following EXCEPT:

A. Class A materials. B. Class D materials. C. electrical equipment. D. flammable gaseous materials.

Health Professions

________ is software that can be installed without the user's knowledge to track their actions on a computer.

A) Adware B) Trackware C) Spyware D) Keyware

Health Professions

The treatment for non-toxic goiter is:

a. antithyroid medication. b. supplemental thyroid hormone. c. disable the thyroid with radioactive iodine. d. beta blockers.

Health Professions