Quiz 9 - Chordata II

Question 1

lobe-finned fish is what class

Answer 1

sarcopterygii

Question 2

Clade tetrapoda is what

Answer 2

bony vertebrates with four dactylous limbs

Question 3

challenges to living on land (6)

Answer 3

support, locomotion, gas exchange, desiccation, fertilization, thermal extremes

Question 4

axial skeleton is what

Answer 4

skull and vertebrae comprising the backbone

Question 5

appendicular skeleton is what

Answer 5

bones of limbs and their girdles (what holds them to axial skeleton

Question 6

limbs solved what to-land problems

Answer 6

support and locomotion

Question 7

tetrapod ancestor had _ fingers on each hand, and _ toes on each foot

Answer 7

5, 5

Question 8

muscles that work in opposites

Answer 8

antagonistic

Question 9

orders in class amphibia

Answer 9

urodela, Anura

Question 10

what class are frogs and toads in

Answer 10

class Anura

Question 11

what class are salamanders in

Answer 11

urodela

Question 12

sexually mature adults retain juvenile characteristics

Answer 12

paedomorphosis

Question 13

characteristics of class amphibia (6)

Answer 13

ectothermic, respiration through lungs and gills, metamorphosis, external fertilization, one neck vertebra, three-chambered heart

Question 14

ridges along side salamander bodies

Answer 14

costal grooves

Question 15

common opening for both digestiove and reproductive tracts in salamanders

Answer 15

longitudinal cloacal slit (anterior-posterior direction)

Question 16

many amniotes are covered in an outer layer of scales made of what

Answer 16

keratin, helps dessication

Question 17

skull with no holes behind the orbit

Answer 17

anapsid (turtles)

Question 18

skull with one hole behind the orbit

Answer 18

synapsid (mammals)

Question 19

skull two holes behind the orbit

Answer 19

diapsid (lizards, snakes, crocs, birds)

Question 20

what clade are turtles in

Answer 20

clade testudines

Question 21

top portion of a turtle shell is called

Answer 21

carapace

Question 22

bottom portion of a turtle shell is called

Answer 22

plastron (dermal bone)

Question 23

scales on turtle shell are called, made of what

Answer 23

scutes, keratin

Question 24

divert the normal flow of blood away from the lungs toward the more important organs (turtles) is called

Answer 24

shunting

Question 25

what clade are lizards and snakes in

Answer 25

examples of clade lepidosauria

Question 26

scaled reptiles are called what

Answer 26

squamates

Question 27

lepidosauria have what kind of cloacal slit

Answer 27

transverse