Which among the following have a 'mixed heart' __________ ?
Correct answer: A. Reptiles
- A. Reptiles
- B. Fishs
- C. Birds
- D. None of these
Explanation
Most reptiles have a three-chambered heart in which some oxygenated and deoxygenated blood can mix, so it is called a mixed heart. Crocodilians are an exception because they have four chambers.
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