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Kingdom Animalia — Biology STD 11 Science — Question

Maharashtra BoardEnglish MediumSTD 11 ScienceBiologyKingdom Animalia1 Mark
Question
Which type of circulation occurs in Aves?
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Answer

Circulatory system: They show double circulation. Blood is red in colour due to presence of biconvex and nucleated RBCs. Heart is perfectly four chambered, with two auricles and two ventricles.

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