2461. Which of the following is a mammal?
✅ C. Platypus
✅ C. Platypus
✅ B. Flat
✅ C. The man
✅ C. 4.54 billion years
✅ B. John Dalton
✅ C. vitamin C
✅ C. Typhus
✅ B. Precision and accuracy should go side by side in a scientific work
✅ C. Ammeter
✅ C. watching