Systemic (internal) respiration refers to
A. gas exchange in the atmosphere.
B. atmospheric air coming into the lungs.
C. gas exchange between the lungs and the blood.
D. gas exchange between the blood and body tissues.
E. cellular respiration.
Answer: D
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Which condition is characterized by a malignant, metastasizing tumor of the mammary gland?
A) menopause B) fibrocystic disease C) breast cancer D) ductal blockage E) endometriosis
The vessels that deliver oxygen to the tissues of the body are part of the __________.
Fill in the blank(s) with the appropriate word(s).
The structure of the heart allows it to function as a double pump.?
Indicate whether the statement is true or false