Chapter 23 (6 vertabrate groups)

Question 1

6 clasical vertabrae groups

Answer 1

Cartilagenous Fishes, Bony Fishes, Amphibians, Mammals, Reptiles, Birds

Question 2

Amphibians

5

Answer 2

1st vertabrae on land, Shortened ribs, Cutaneous respiration (‘breathe’ through skin), 4 digits, Poison glands in their skin,

Question 3

Amphibian classes

3

Answer 3

Anura(without tail)-frogs, Caudata(visible tail)-salamanders, Apoda(without legs)

Question 4

Aminotes

Answer 4

reptiles and mammals

Question 5

Reptiles

5

Answer 5

Hard beta keratin(skin &claws), Temp. dependant sex, uric acid=waste, Thoracic breathing(diaphram), ectothermic

Question 6

Reptile orders (4)

Answer 6

(turtles&tortis), (tuataras),(lizards and snakes),(crocodiles and alligators)

Question 7

Aves

4

Answer 7

Birds, most diverse, feathers, flight skeleton

Question 8

Mammalia

5

Answer 8

Hair, mammary glands(secrete milk), endothermy, placenta, specilized teeth,