Question

Microscopic abrasion on human teeth provides clues to general types of food intake. Abrasive particles in food leave striations on the tooth enamel which
a) on meat eaters, leave vertical striations on lateral surfaces of teeth
b) on vegetarians, leave both vertical and horizontal striations
c) leave striations on the biting surfaces (which also can be the result of food preparation)
d) answers a and c only
e) Answers a, b, and c are correct

Answer

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