What feature(s)separates a shark from a blue-gill?
A)Gill slits versus operculum
B)Cartilage versus bones
C)Internal versus external fertilization
D)No swim bladder versus swim bladder
E)All of the choices are correct distinctions

Question

Quizplus · Accepted Answer

All of the choices listed are correct distinctions between sharks and blue-gills. Sharks have gill slits while blue-gills have an operculum covering their gills. Sharks have cartilage while blue-gills have bones. Sharks undergo internal fertilization while blue-gills undergo external fertilization. And finally, sharks do not have a swim bladder while blue-gills do have a swim bladder.

What Feature(s)separates a Shark from a Blue-Gill