Which of the following is defined as the exchange of oxygen ...

[waynest]

Which of the following is defined as the exchange of oxygen between an organism and its environment?
 A) Elimination
  B) Expiration
  C) Respiration
  D) Inspiration

Question 2

Why are the definitions of the systems of speech primarily a convenience for discussing speech science?

[jsm54321]

Answer to Question 1

C

Answer to Question 2

Defining the systems of speech is only a convenience, because none of the four systems operate in isolation. To produce the sounds of speech, all of the systems of speech must operate together in a highly integrated manner. The science of speech is extremely complicated, and defining the systems of speech simply makes it easier to discuss normal speech production and speech pathology.

[waynest]

Excellent

[flexer1n1]

Thanks for the timely response, appreciate it