Between ages of 6 and 12,
A) liagments become firmly attached to bones.
B) the bones of the body shorten and narrow.
C) all 20 primary teeth are lost and replaced by permanent ones.
D) primary teeth are gradually lost, starting with the molars.

Question

Quizplus · Accepted Answer

Between the ages of 6 and 12, all of the 20 primary teeth are gradually lost and replaced by permanent ones. This process typically begins with the front teeth and then moves backward to the molars. Ligaments do become more firmly attached to bones during this time, but this is not the most significant change that occurs, and bones do not actually shorten and narrow during this period.

Between Ages of 6 and 12