Topic 32: Reptiles

Question 1

Clade Reptiles

Answer 1

Tuataras, Lizards, Snakes, Turtles, Crocodilians, Birds, and Dinosaurs

Question 2

Characteristics of Non-Avian Reptiles

Answer 2

Keratin Scales
No parental care
Ectothermic
Three-chambered heart

Question 3

Ectothermic

Answer 3

Relying on environmental heat sources to maintain body temperature.

Question 4

Two Main Lineages of Diapsids

Answer 4

Lepidosaurs and Archosaur

Question 5

Lepidosaurs

Answer 5

Tuataras, lizards, snakes.
Teeth fused to jaw
Overlapping scales
Hemipenis

Question 6

Archosaur

Answer 6

Crocodilians, pterosaurs, birds and dinosaurs.
Socketed Teeth, beak or bill instead.

Question 7

Pterosaurs

Answer 7

First tetrapod to exhibit flight

Question 8

Turtles, Tortoises

Answer 8

Anapsid Skulls
Bony shell made of scutes fused to vertebrate, clavicle, and ribs.
No teeth
Intromittent organ

Question 9

Scutes

Answer 9

Bony external plates

Question 10

Tuataras

Answer 10

Only 2 species remaining, look like lizards.

Question 11

Squamates

Answer 11

Lepidosaur = Lizards and snakes.
Loose jaw and skull
Hemipenis
Moulting

Question 12

Lizards

Answer 12

Well developed limbs and external ears

Question 13

Snakes

Answer 13

Carnivorous legless lepidosaur w/ adaptation to kill and capture prey

Question 14

Crocodilians

Answer 14

Alligators and crocodiles, elongated and flat skull, swallow prey whole, scutes, 4-chambered heart, intromittent organ, maternal care.