A teenager's respiration rate is ________ per minute. A) 20-30 ...

[bobbysung]

A teenager's respiration rate is ________ per minute.
 
  A) 20-30
  B) 30-60
  C) 12-20
  D) 16-20

Question 2

A very serious autoimmune disease characterized by muscular weakness is known as:
 
  A) dystrophy.
  B) myasthenia gravis.
  C) atrophy.
  D) myalgia.

[Tonyam972]

Answer to Question 1

C
Explanation: A) A respiration rate of 20-30 per minute is that of a toddler.
B) A respiration rate of 30-60 per minute is that of a newborn
C) Correct.
D) A respiration rate of 16-20 per minute is that of an adult.

Answer to Question 2

B
Explanation: A) Dystrophy is degeneration of muscles caused by defective nourishment.
B) Correct.
C) Atrophy is wasting of muscle tissue.
D) Myalgia is muscle pain.