Which valve in the human heart prevents oxygenated blood from going back into the left atrium?
A) Bicuspid (mitral) valve
B) Aortic semilunar valve
C) Tricuspid valve
D) Pulmonary semilunar valve
Correct Answer:
Verified
Q22: _ are blood vessels that move blood
Q23: Which animal has a gastrovascular cavity?
A)Flatworms,such as
Q24: The fraction of the total volume of
Q25: All these animals have a closed circulatory
Q26: Which animal obtains additional oxygen by cutaneous
Q28: White blood cells are also called erythrocytes.
Q29: Cardiovascular disease is the second leading cause
Q30: Blood plasma is 90% water.
Q31: _ are tiny blood vessels leading away
Q32: Which is incorrect about the fish heart?
A)Blood
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