NEET Biology: Animal Tissues questions with solutions

Q1. Ringer's solution contains

1. lodine and salt
2. Acetic acid and wax
3. sodium and potassium ions
4. water and acid fuchsin

Answer: sodium and potassium ions

Ringer’s solution is designed to resemble extracellular fluid, so it contains essential salts such as sodium and potassium ions. The other options include unrelated substances that are not part of this balanced electrolyte solution.