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प्रश्न
Which of the following has a three-chambered heart?
विकल्प
Pigeon
Lizard
Fish
Lion
उत्तर
Lizard
Lizard is a reptile and it has a three-chambered heart. Birds (e.g. pigeons) and mammals (e.g. lions) have a four-chambered heart, while Pisces (e.g. fish) have a two-chambered heart.
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