Question

In which of the following animals has teeth in its only one jaw?(a) elephant(b) cow(c) donkey (4)Rat

Answer 1

Rat has teeth only in one jaw

Answer 2

The cow has teeth in its one jaw and a tough pad of skin instead of teeth on the upper jaw. In total cow has thirty-two teeth. It cannot bite because of not having an upper set of teeth but it can gum. However, the animals having teeth in one jaw are known as monophyodont. While the animals having two sets of jaws (teeth) are known as diphyodont.