Fish
Fish
Indicate whether the sentence or statement is true or false.
 
Lobe-finned fishes were the ancestors of amphibians.
 
Small, jawed fishes are the first vertebrates for which there is fossil evidence.
 
3. 
Fishes and amphibians first appeared on Earth during the Cambrian period, about 550 million years ago.
 
A fishs gills would collapse on land.
 
5. 
Since they live in salt water, marine fishes do not have a problem maintaining the proper balance of water and salt in their body.
 
The first fishes to develop jaws were called spiny fishes, members of the class   Acanthodia.
 
Sharks have good vision and can detect electromagnetic fields coming from prey animals.
 
Members of the class Osteichthyes have skeletons of cartilage.
 
Bony fishes have a swim bladder.
 
10. 
In order to fill their swim bladders, bony fishes have to come to the surface to gulp air.
 
Identify the letter of the choice that best completes the statement or answers the question.
 
11. 
Which of the following would not be an advantage of the endoskeleton found in all vertebrates?
a.
It protects internal body structures.
b.