Categorize each mutation by its most likely effect on the organism. harmful beneficial neutral

The correct order is:

1.Neutral

2.Harmful

3.Beneficial

Neutral mutations have no effect on organism and the majority of mutations are neutral

Harmful mutations (or deleterious) may cause genetic disorders and those mutation decreases the fitness of the organism.

Beneficial mutations (or advantageous)  increases the fitness of the organism and may become more common through natural selection.

i think the miocene epoch spans the time from 23 million to 12 million years ago.