Multiple Choice
Which of the following statements regarding circulatory systems is true?
A) The smallest blood vessels in the body are veins.
B) A circulatory system is necessary in any animal whose body is too large or too complex for vital chemicals to reach all parts of the body by diffusion.
C) Materials are exchanged directly between the blood and body cells.
D) Veins carry blood away from the heart to body organs and tissues.
Correct Answer:
Verified
Correct Answer:
Verified
Q24: In mammals, which of the following vessels
Q25: The anterior interventricular artery supplies a portion
Q26: As blood moves away from the heart
Q27: Stem cells found in the red marrow
Q28: Which of the following animals has a
Q30: To evaluate cardiac function, scientists and physicians
Q31: To evaluate cardiac function, scientists and physicians
Q32: Whether there is a net flow of
Q33: Although birds and mammals descended from different
Q34: Cardiac output is defined as the volume