vertebrates - amphibians and reptiles

Question 1

tetrapods - amphibians, reptiles, mammals

Answer 1

four limbs
ear
no gills
neck
pelvis fused w backbone

Question 2

amphibian traits

Answer 2

predatory
gas exchange: moist skin or via lungs

Question 3

amphibian types

Answer 3

salamanders - urodela
frogs - anura
caecilians - apoda

Question 4

frogs (anura)

Answer 4

lack tails
powerful hind legs
external aquatic fertilization
frogs w leathery skin = toads
chytrid fungus harmful

Question 5

salamander (urodela)

Answer 5

aquatic and terrestrial
northern hemisphere
internal fertilization
paedomorphosis - retraction of larval features

Question 6

caecilians (apoda)

Answer 6

legless
nearly blind
not segmented, but look it
breathe through skin
egg guarding, young eat mother?
rubber eel

Question 7

amphibians reproduction

Answer 7

laid in water/moist environments
external fertilization
metamorphosis

Question 8

amniotes

Answer 8

reptiles, mammals
terrestrially adapted eggs
internal fertilization
amnion - fluid filled sac
shell slows dehydration

Question 9

reptiles

Answer 9

tutataras
lizards
snakes
tutles
crocodiles
birds

Question 10

reptiles shared derived traits

Answer 10

scales containing keratin
shelled eggs on land
internal fertilization

Question 11

body temp in reptiles

Answer 11

ectothermic
- regulate body temp thru behavioral adaptation
endothermic
- birds
- maintain body temp thru metabolic activity

Question 12

squamates: lizards and snakes

Answer 12

quadrate bone for jaw flexibility
lizards: ear opening
snakes descended from lizards
snakes: belly scales that grip

Question 13

crocodiles

Answer 13

american alligator &crocodile
indeterminate growth
temp dependent sex determination
extensive parental care