Answer to Question 1
D
Explanation: Scabies is caused by a mite infestation. Pediculosis is a lice infestation. A wheal is a small, round, swollen area on the skin. Impetigo is a highly contagious bacterial infection.
Answer to Question 2
A
Explanation: A) Correct. Prolonged exposure to x-rays does not depress the heart rate.