Question

Which sea animal replaces its teeth with new ones once upon a week?

Answer 1

Answer:crocodile

Explanation: A polyphyodont is any animal whose teeth are continually replaced. In contrast, diphyodonts  new permanent teeth grow in the jaws, usually under or just behind the old tooth, from stem cells in the dental lamina contrast to most other mammals which replace their teeth only once in their lives (diphyodont).