Reptile Exam Study

Question 1

Key Reptile Characteristics:

Answer 1

•Dry, scaled, relatively impermeable skin.
•Ectothermy (cold-blooded).
•Lay shelled amniotic eggs.
•Internal fertilization.
•No larval stage.
•4 limbs (tetrapods) and a tail.
•More efficient lungs.
•Skeleton gives better support and more efficient movement on land.
•3 chambered heart, crocodilians have a 4 chambered heart.
•Many have bold and elaborate color patterns.
•Temporal fenestration.
•Homodont teeth.

Question 2

Different types of necks in turtles:

Answer 2

•Cryptodires can retract head into shell.
•Pleurodires can hide head left and right in shell.

Question 3

Squamata Simple Phylogenic Tree:

Answer 3

•Iguania consists of Agamidae, Chamaeleonidae, Iguanidae.
•Scleroglossa consists of Gekkonidae, Lacertidae, Scincidae and then Serpentes and Varanidae.