Statement-I: Sino-atrial node is the natural pacemaker of the heart. Statement-II: Out of 55%, 90-92% of plasma is water and proteins contribute 6-8 percent of it.
- ABoth Statement-I and Statement-II are correct.
- BBoth Statement-I and Statement-II are incorrect.
- CStatement-I is correct and Statement-II is incorrect.
- DStatement-I is incorrect and Statement-II is correct.
✓ Correct answer: A
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