(a)[2]
What does the term mechanical digestion mean?
(b(i))[2]
In Fig. 7.1, label the parts Q and R.
(b(ii))[2]
State two reasons why this tooth cannot be a canine tooth.
(b(iii))[2]
Suggest why the tooth is more likely to decay when the gums are positioned at S.
(b(iv))[2]
State two ways to maintain healthy teeth.