Letter B is pointing to which organ of the Respiratory System?
Letter A is pointing to which organ of the Respiratory System?
Letter C is pointing to which organ of the Respiratory System?
How is carbon dioxide released from the body?
Number 1 is pointing to which part of the Respiratory System?
Number 2 is pointing to which part of the Respiratory System?
Number 6 is pointing to which part of the Respiratory System?