The exchange of oxygen and carbon dioxide between the blood and cells throughout the body is called
a. cellular respiration
b. internal respiration
c. external respiration
d. breathing
b. internal respiration
You might also like to view...
Helper T cells are important only for cell-mediated immune responses
Indicate whether the statement is true or false.
Which of the following is true about skeletal muscle fibers in aging people?
A) The number of fibers decreases. B) There is a decreased density of capillaries that supply muscle cells. C) The number of motor neurons that innervate skeletal muscle decreases. D) All of the above.
What is meant by the terms sex and gender? Why are the differences between the two terms important?
What will be an ideal response?
How many pairs of ribs are "floating ribs" that do not articulate with the sternum?
A. 12 B. 2 C. 10 D. 7 E. 5