Which of the following is NOT a difference between sea stars and brittle stars?

Label the skull photos below diapsid, synapsid and anapsid.   [1.____________________]            [2.______________________]            [3._______________________]

Two part questions about birds:  What structures where feathers modified from? [1.____________] What purpose did feathers serve for the original dinosaurs that had them? [2.___________]

Essay: Describe two reasons why the evolution of the amniotic egg made it possible for adapting to dry, terrestrial environments.

The bones of modern birds are referred to as ____________ bones as they are filled with air cavities instead of marrow.

Name the three major groups of mammals. If you can’t think of the names, feel free to distinguish them based on the way they reproduce. (3) ________________ ________________ ________________

Which of the following types of feathers extend beyond the body of the bird and are specifically for helping the bird maintain its equilibrium while in the air? 

Chose one: Briefly describe the difference between skates and rays OR describe how you can tell the difference between a male and a female shark OR state how you can tell the difference between a crocodile and an alligator.

Short answer: Why are mammal antlers not considered true horns?

Which of the following may complicate airway management procedures in the pediatric patient?