Exam 10: Marine Fishes

The skeletons of both hagfish and sharks are made of the same cartilaginous material.

A fish in which a sharp spine is associated with the dorsal fins is the:

Match the fish with its feeding type. -Herbivore

The fins of bony fishes are more maneuverable than those of cartilaginous fishes.

Match the body form with its most closely associated species. -Flounder

Even though the caudal fin of sharks tends to direct the fish downward when swimming (due to slight downward force generated by the heterocercal tail) the shark still manages to swim at a fairly consistent depth. Explain how can this be so.

Match the words with the terms they are most closely associated with. -Bright colors

Compare sharks and bony fishes in regard to how they ingest their food. In your answer, discuss how both the position of the mouth and the presence of a gill cover confers a feeding advantage to bony fish

Unique features of skates and rays are their

What are 2 pieces of anatomical evidence that lead ichthyologists to consider that sturgeons are a fairly old group of fishes?

Match the hermaphroditism with the appropriate term. -Protandry

The skin of the subclass Chondrosti is covered with scales called:

A shark reproduction scheme in which the embryos develop within eggs that supply all their nourishment inside the oviduct of the female is called:

Match the hermaphroditism with the appropriate term. -Synchronous

Match the swimming type with the appropriate type of fish. -Eels

Match the words with the terms they are most closely associated with. -Disruptive coloration

Countershading is a common form of camouflage in ____ fishes.