Which is one property of ears and hearing that all mammals share?

The mammalian middle ear has three tiny bones that carry sound vibrations from the outer to inner ear. The bones give mammals exceptionally good hearing. In other vertebrates, the three bones are part of the jaw and not involved in hearing. Mammals have four different types of teeth.

Explanation:

your answer would be a, maximum exploitation of resources.

what are the awnser choices? i mean, without choices, it is an incompleat