Do perch fish have a gizzard?

How Do Energy Budgets Differ for Three TerrestrialVertebrates?

Name the parts of the stomach  of dogfish shark and its mesenteries

how do organisms without a swim bladder behave?

The swim bladder found in bony fishes; Serves as a second bladder that they can use to store urine Helps to fan fresh water over their gills Helps them to become more bouyant Helps them to digest their food

In what animals would you expect to find a salt gland? What is its function?

Name the tail type and the tooth attachment type found in the dogfish.

(1) Please examine the figure below, depicting a portion of the rete mirabile associated with the gas bladder of two fishes: (a) One of these diagrams references a shallow water fish and the other references a deep water fish. Which diagram belongs to which type of fish? How can you tell? (b) Many deep water fish lack swim bladders altogether! Why do you think this is? What does the presence of a swim bladder in the above deep sea fish suggest about its behavior?

Why is the incisors of rodents (such as mice and rats) are larger than humans?

Name the organs that help in excretion in the cockroaches.