(a) Sharing food

(b) Bathing twice a day

(c) Drinking boiled water

(d) Eating without washing one’s hand

(a) Hygiene

(b) Social hygiene

(c) Personal hygiene

(d) None of the above

(a) 1st March

(b) 7th April

(c) 6th October

(d) 10th December

(a) Skin

(b) Head

(c) Lungs

(d) Pores on its anterior end

(a) Larynx

(b) Lungs

(c) Trachea

(d) Oesophagus

(a) Air enters the body and travels to the lungs through the mouth and the nose

(b) Air enters the body and travels to the lungs through the oesophagus and gullet

(c) Air enters the body and travels to the lungs through the windpipe and the pores

(d) Air enters the body and travels to the lungs through the nose and the nervous system.

(a) Lungs

(b) Air sacs

(c) Air sacs and Lungs

(d) None of the above

(a) Lungs

(b) Ventral respiratory group

(c) Dorsal respiratory group

(d) Both (b) and (c)

(a) Larynx

(b) Pharynx

(c) Nasal chambers

(d) All of the above

(a) Production of ATP

(b) Exchange of gases between the bloodstream and tissue cells

(c) Exchange of gases between alveoli and the bloodstream

(d) Breathing between the atmosphere and the alveoli