Ch 20-Amphib/rept

Question 1

The class reptila includes what four taxonomic orders?

Answer 1

1. Crocodylia (alligators and crocodiles)
2. Squamata (snakes and lizards)
3. Chelonian (turtles and tortoises)
4. Rhyncocephalia (tuataras)

Question 2

The class amphibia includes what three taxonomic orders?

Answer 2

1. Gymnophiona (caecilians - legless, wormlike, tropical amphibian)
2. Anura (frogs and toads)
3. Caudata (salamanders and newts)

Question 3

Amphibians method of breathing is?

Reptiles method of breathing is?

Answer 3

A - Gills and lungs

R - Lungs

Question 4

Amphibians method of self defense is?

Reptiles method of self defense is ?

Answer 4

A - Toxic secretions by skin and biting

R - Claws, venomous, biting, and whipping tail

Question 5

Amphibians skin texture is?

Reptiles skin texture is>

Answer 5

A - smooth, sticky, scaleless and moist. Presence of mucous glands.

R - dry, hard and scaly. Presence of skin under the scales

Question 6

Amphibians have what types of eggs?

Reptiles have what type of eggs?

Answer 6

A - Soft eggs surrounded by gel. Found in damp places or in water

R - hard and leathery eggs that are laid on land, amniotic eggs

Question 7

Amphibians have how many chambers in the heart?

Reptiles have how many chambers in the heart?

Answer 7

A - three (i.e. frogs, toads, newts, salamanders)

R - three with the wall between the ventricles being incomplete - crocociles have 4 chambers
(i.e. snakes, crocodiles, lizards, turtles)

Question 8

Amphibians and reptiles are commonly referred to as ectothermic or…?

Answer 8

cold-blooded - unable to generate body heat internally

- body temperature depends on environmental temperature

Question 9

Some reptiles can raise body temperatures via __________ processes (e.g., muscular contractions)

Answer 9

metabolic

Question 10

What is behavioral thermoregulation?

Answer 10

amphibians and reptiles are able to precisely regulate their body temperatures according to metabolic need.
ie - chameleons - change color and pattern of their skin to increase or decrease the absorption of thermal energy from the sun.