Question

With their lack of gills, dolphin must surface every 10-15 minutes to breathe using a structure called a blowhole located on the top of its head. Young dolphins, when born, also have a small amount of hair on their lips which falls off shortly after birth. Which would be the best classification group for a dolphin? A) amphibian B) fish C) mammal D) reptile i think [D]

Answer 1

I am certain your answer is D.

Answer 2

C. Any animal with hair is a mammal. Humans are mammals and if you search it up, dolphins are absolutely mammals.

~hope this helps