When blood is drawn from a blood vessel in your arm, it is dark red. This color indicates that the blood was:
A) taken from an artery.
B) going away from the heart.
C) taken from a vein.
D) on its way to the tissues of the arm.
E) coming from the lungs.
Correct Answer:
Verified
Q39: Gas exchange in the lungs occurs due
Q40: Which respiratory system characteristics are shared by
Q41: The tiny tubes that carry air to
Q42: Carbon monoxide is poisonous because it:
A)causes breathing
Q43: One _ leads to each human lung.
A)larynx
B)bronchus
C)pharynx
D)trachea
E)bronchiole
Q45: The respiratory center is very sensitive to
Q46: Which of the following events causes exhalation?
A)contraction
Q47: Which of the following is NOT part
Q48: Carbon dioxide can be transported in the
Q49: Where do air from the nose and
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