Question

3
If the teeth are not cleaned regularly, they become covered with a sticky yellowish layer W of food particles and bacteria. Since layer W covers the teeth, the alkaline liquid X secreted by glands Y inside the mouth cannot reach the teeth surface to neutralise the acid formed by the action of organisms Z on sugary food, and hence tooth decay sets in.
(a) What is W known as?
(b) What is (i) X, and (ii) Y?
(c) What are organisms Z?
(d) State one way of removing layer W from the teeth.

Answer 1

Answer:

(a) W is the dental plaque.

(b) (i) X= Saliva (ii) Y = Salivary glands

(c) Z = Bacteria

(d) It can be removed by brushing and cleaning teeth regularly. ...

plz mark me BRAINLIEST. . .

Answer 2

Answer:

Hello mate

W is dental plaque

X is saliva and y is salivary glands

Z is bateria

d. It can be removed by brushing and cleaning teeth regularly

Hope it might helps you

please Mark IT as the brainlist answer