Multiple Choice
In which of the types of hearts is oxygen-rich and oxygen-poor blood mixed?
A) two-chambered
B) three-chambered
C) four-chambered
D) two and three-chambered
E) all three types of hearts
Correct Answer:
Verified
Correct Answer:
Verified
Q24: Breathing is under _ control.<br>A)voluntary<br>B)involuntary<br>C)voluntary and involuntary<br>D)oxygen
Q36: In this disease,the mucus-producing lining of airways
Q37: Pulmonary veins carry<br>A) oxygen-rich blood.<br>B) oxygen-poor blood.<br>C)
Q38: The _ takes up HDLs and uses
Q39: When ventricles are full of blood,which valves
Q44: A large respiratory surface<br>A) results in a
Q45: In human lungs,where does gas exchange occur?<br>A)
Q46: An animal with an open circulatory system
Q46: When the heart's pacemaker malfunctions _ can
Q86: Anemia refers to _.<br>A) too many or