ICSE Class X Biology 2016 Solved Papers

Differentiate between the following pairs on the basis of what is mentioned within brackets :

Question : 41 of 93

Marks: +1, -0

LUBB and DUP (names of the valves whose closure produce the sound)

Solution:

LUBB : Atrioventricular valves
DUP: Semilunar valves.

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