R Ram Sharma 🎓 Coach ⭐ 193.88K Points 📊 Biology Q. The functions of pacemaker is (A) Regulation of digestion (B) Regulation of urine formation (C) Initiation of respiration (D) Initiation of heart beat 👁️ Show Answer 🔗 Share ⚡Menu ✅ Correct Answer: (D) Initiation of heart beat You must be Logged in to update hint/solution 💬 Discussion 💬 Comment