iswearimimsane iswearimimsane

20-05-2016
Biology

Answered

As various vertebrate groups evolved, the structure of the heart changed. Which of the following describes the heartsame of birds and mammals?

AOne atrium and one ventricle
BTwo atria and one ventricle
COne atrium and two ventricles
DTwo atria and two ventricles

Verified Answer :

Anaxo52 Anaxo52

21-05-2016

Two atria and two ventricles

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