📅 NSB Round Robin 2020🎓 MS🔄 Round 12#️⃣ Question 18🌟 BONUS✍️ Short Answer
Place the following three events in the history of life on Earth in chronological order: 1) Emergence of shelled animals; 2) Emergence of fish; 3) Emergence of amphibians.
✔️Answer:1, 2, 3
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