Thabovdiagrais an examplof
A) a closed circulatory system with one heart.
B) an open circulatory system with one heart.
C) a closed circulatory system with seven hearts.
D) an open circulatory system with seven hearts.
E) none of these.
Correct Answer:
Verified
Q13: An animal with an open circulatory system
A)lacks
Q14: Smoking immobilizes thcilia that linthrespiratory tract, leading
Q15: Exposurto seconhansmokcauses
A)about 3,000 lung cancer deaths/year.
B)about 300
Q16: Why does blooflow frothsmall intestinal capillary beto
Q17: Health problems associatewith smoking include
A)stroke.
B)breast cancer in
Q19: Arteries
A)are narrow in diameter.
B)carry blood away from
Q20: In thabovdiagram, B represents which of thfollowing
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