Reptiles

Art Connections

Figure Which of the following statements about the parts of an amniotic egg are false?

  1. The allantois stores nitrogenous waste and facilitates respiration.
  2. The chorion facilitates gas exchange.
  3. The yolk provides food for the growing embryo.
  4. The amniotic cavity is filled with albumen.

Hint:

Figure D

Figure Members of the order Testudines have an anapsid-like skull with one opening. However, molecular studies indicate that turtles descended from a diapsid ancestor. Why might this be the case?

Hint:

Figure The ancestor of modern Testudines may at one time have had a second opening in the skull, but over time this might have been lost.