Which of the following organisms show incomplete double circulation?(a) Birds(b) Reptiles(c) Mammals(d) CrocodilesI had been asked this question in homework.My query is from Double Circulation topic in chapter Body Fluids and Circulation of Biology – Class 11

Which of the following organisms show incomplete double circulation?(a

1.	Which of the following organisms show incomplete double circulation?(a) Birds(b) Reptiles(c) Mammals(d) CrocodilesI had been asked this question in homework.My query is from Double Circulation topic in chapter Body Fluids and Circulation of Biology – Class 11
Answer» Correct choice is (b) Reptiles The explanation is: In amphibians and reptiles, the LEFT ATRIUM receives oxygenated blood from the gills/lungs/skin and the right atrium gets deoxygenated blood from other body parts. HOWEVER, they get mixed up in the SINGLE ventricle which pumps out mixed blood and is therefore known as incomplete double circulation.

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Which of the following organisms show incomplete double circulation?(a) Birds(b) Reptiles(c) Mammals(d) CrocodilesI had been asked this question in homework.My query is from Double Circulation topic in chapter Body Fluids and Circulation of Biology – Class 11

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