1.What structure do all vertebrates share in common?

2.What does the term ‘amphibian’ mean, and why is it a proper classification for frogs?

3.Is it easy to tell a male and female frog apart? Explain.

4.What important function does the frog’s skin perform?

5.How are the positions of the frog’s eyes different from that of a human, and why is this advantageous (or good) for

the frog?

6.What is the function of the tympanic membranes, and which human structures are they most similar to?

7.Why are forelimbs smaller and less muscular than the hind legs?

8.What do muscles found in the frog’s upper leg move?

9.What do muscles found in the frog’s lower leg move?