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Heart Beat

CBSE VII Science Transportation in Animals and Plants

heart beat increases in case of vigorous exercises

Asked by arajeevshashank 2nd November 2017 1:40 PM
Answered by Expert

ICSE X Biology The Circulatory System

Plz answer 9th ques

Asked by lovemaan5500 28th January 2018 8:39 PM
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ICSE VIII Biology The Circulatory System

give reason four heart valves are present in the heart.

Asked by nathsantanukumar 3rd May 2018 9:11 AM
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