Q. Which of the following classes of animals has/have three-chambered heart?
A) Amphibia and Reptilia
B) Pisces and Amphibia
C) Amphibia only
D) Reptilia only
✔ Correct Answer: Amphibia and Reptilia
Exam Insight
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A) Amphibia and Reptilia
B) Pisces and Amphibia
C) Amphibia only
D) Reptilia only
✔ Correct Answer: Amphibia and Reptilia
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