Q. A four chambered heart is found in which of the following?

  • (A) mammals only
  • (B) mammals and fish
  • (C) mammals & Birds
  • (D) mammals and Amphibians
✅ Correct Answer: (C) mammals & Birds

Published by Krishna Sharma ⭐ 48.52K Points at 13-Jun-2021 10:28 am in Science

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