Question

Sharks, whales, and dolphins share similar features such as body shape and the position of fins. However, sharks have gills for breathing, while whales and dolphins have lungs. These differences indicate that the organisms share a common ancestor for ?

Answer 1

The first space is "body structure, but their breathing structures evolved from different ancestors"

The second space is "evolved from organisms with legs"

Step-by-step explanation:

I got it right on Plato.