Question

(science)Which shared derived characteristic do reptiles, marsupials, and dogs have?

Amniotic egg
Fur
Retractable claws
Shearing teeth

Answer 1

Shearing teeth because I said so

Answer 2

Shearing teeth

Step-by-step explanation:

Dogs don't lay eggs, reptiles don't have fur, none of them have retractable claws, so shearing teeth is the only thing left.