Amphibians

Question 1

General Characteristics

Answer 1

Tetrapod Amniote, Ectothermic, Poikilothermic, Cold-blooded, Aquatic Eggs and larval stage mainly, metamorphosis, and skin typically moist

Question 2

Order Gymnophonia

Answer 2

“naked snakes” caecillians

Question 3

Order Gymnophonia characteristics

Answer 3

Long and Limbless, Burrowers, eyes reduced, sensory tentacles

Question 4

Order Urodela

Answer 4

“Tail evident” salamanders and newts

Question 5

Order Urodela characteristics

Answer 5

Tail, forelimbs, and hindlimbs equal size, babies and adults mainly carnivorous

Question 6

Order Urodela Reproduction

Answer 6

Internal Fertilization

Question 7

Order Urodela Resoiration

Answer 7

Cutaneous, vascular skin, vascular lining with buccalpharyngeal, external gills in babies, lung in adults.

Question 8

Paedomorphois (baby form)

Answer 8

retention of baby forms as adults

Question 9

Newts vs. Salamanders

Answer 9

salamanders are aquatic and gill breathing as babies, live on land and have lungs as adults,

Question 10

Order Anura

Answer 10

“no tail” frog and toads

Question 11

Order Anura Characteristics

Answer 11

Adults lack tail, strong and long back legs for jumping, adults are carnivorous, babies are tadpoles(legless, herbivores) Skin has mucous glands that moisten and waterproof, serous toxin glands defend

Question 12

Chromatophores

Answer 12

camouflage that is from branched cells, pigment concentrated or spread and change color

Question 13

Respiration

Answer 13

babies gills internal unlike salamander, adults cutaneous- vasuclar skin buccalpharyngeal breathing

Question 14

Lungs

Answer 14

Positive Pressure system (air in mouth forced in) versus pressure system in amniotes (lowered lung pressure allows air to flow in)

Question 15

Circulation

Answer 15

3 chambered heart, ventricle, 2 atria, double circulation

Question 16

Reproduction

Answer 16

external unlike salamanders and newts

Question 17

Amplexus

Answer 17

male and female fertilize eggs as laid