Sharks, lampreys, rays and tuna fish belong to the same ___?

What is a shark's adaptation to maintaining buoyancy?

What is special about a shark's jaw?

Three classes of fish ___.

Another name for the tail of a fish is the ___ fin.

Name this type of caudal fin.

Many marine fish have a lateral line. The purpose is to

Which fin is shown?

What is the special electroreceptor organs near the shark's nose called?

Fins on the back of the fish are ___ fins.

What do you call it when animals have dark dorsal surfaces but light ventral surfaces?

If the female dies, the largest male in the community will change sex and become a female. This occurs in:

Type of reproduction in osteochthyes:

What kind of fish / sea creature is it?

What physical feature helps determine the diet of the bird?

What kind of food would this bird eat?

What kind of food would this bird eat?

By looking at its feet, I can tell that this bird can ________________

By looking at its feet, I can tell that this bird can ________________

By looking at its feet, I can tell that this bird can ________________

Which mallard duck is a drake (male duck)?

Male birds most often use the color of their feathers to do what?

T/F: The caudal fin of most cartilaginous fish is asymmetrical

Means warm blooded

Fusiform means ___

Feathers of seabirds are ___ due to oil produced by oil glands

Bones of penguins are ____ because they are flightless

Penguins share this with fish

Which of these apply ONLY to bony fish?

Which characteristics apply ONLY to chondrichthyes?