The typical enamel rod is shaped wider at the top and more narrow at the bottom because the hydroxyapatite crystals in those portions differ in size.
A) Both the statement and the reason are correct and related.
B) Both the statement and the reason are correct but are NOT related.
C) The statement is correct, but the reason is NOT correct.
D) The statement is NOT correct, but the reason is correct.
E) NEITHER the statement NOR the reason is correct.

Question

Quizplus · Accepted Answer

The typical enamel rod, described as being keyhole shaped, is wider at the top and more narrow at the bottom. While the hydroxyapatite crystals are the same size, they are oriented in different directions.

The Typical Enamel Rod Is Shaped Wider at the Top