Unit 2: Lesson 15- Reptiles, Birds, and Mammals

Question 1

Amniotes

Answer 1

Tetrapods with extraembryonic membrane (waterproof amniotic egg), waterproof keratin scales, expandable rib cage

Question 2

Class Reptilia

Answer 2

tough skin, keratin scales, leathery shelled egg, ectothermic (cold-blooded), 3.5 chambered heart

Question 3

Order Squamata (Class Reptilia)

Answer 3

Lizards + snakes

Question 4

Order Testudine (Class Reptilia)

Answer 4

Turtles + tortoises, box-like shell made of bone and keratin

Question 5

Order Crocodilia (Class Reptilia)

Answer 5

Alligator/crocodile/caiman, mostly amphibious

Question 6

Class Aves

Answer 6

Birds, flight (costs: energy, loss of bone mass, arms), feathers: modified scales with specialized keratin, beak, no bladder, mad pecs, 4 chambered heart

Question 7

Order Falconiformes (Class Aves)

Answer 7

Hawks + falcons

Question 8

Order Strigiformes (Class Aves)

Answer 8

Owls, funnel face amplifies hearing, silent due to wing modifications

Question 9

Order Passeriformes (Class Aves)

Answer 9

Perching/songbirds, perching tendon keeps from letting go during sleep

Question 10

Order Psittaciformes (Class Aves)

Answer 10

Parrots, eat seeds, intelligent

Question 11

Class Mammalia

Answer 11

Hair, milk, endothermic, heterodontic (different types of teeth), large brain

Question 12

Order Monotremata (Class Mammalia)

Answer 12

Egg-laying mammals, echidna, platypus

Question 13

Order Marsupialia (Class Mammalia)

Answer 13

Have marsupium- stores underdeveloped young, give birth to live young

Question 14

Clade Eutherian (Class Mammalia)

Answer 14

Placental mammals, fully functional live young

Question 15

Ungulate

Answer 15

Walks on phalanges

Question 16

Digitigrade

Answer 16

Heel elevated when walking

Question 17

Plantigrade

Answer 17

Whole foot on ground when walking