Multiple choice

Which of the following statements is/are incorrect?

a. Breathing occurs involuntarily in living beings. b. Rate of breathing is controlled by the lungs. c. Haemoglobin present in blood supplies oxygen to the cells.

  1. a only

  2. b only

  3. c only

  4. a and c

  5. b and c

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the correct answer as this statement is incorrect. Rate of breathing is controlled by the respiration system of the brain.