Cold-Blooded Vertebrates

Question 1

Vertebrates

Answer 1

animal that has a backbone

Question 2

Endotherms

Answer 2

animal that is dependent on or capable of the internal generation

Question 3

Ectotherms

Answer 3

an animal that is dependent on external sources of body heat

Question 4

Lateral line

Answer 4

a faint line visible on both sides of a fish’s body that runs the length of the body and a marks the location of sense organs that detect vibrations in water

Question 5

Gills

Answer 5

a respiratory organ in which oxygen from the water is exchanged with carbon dioxide from the blood

Question 6

Jawless fishes

Answer 6

hagfish, lampreys

Question 7

Cartilaginous Fishes

Answer 7

sharks, skates, rays

Question 8

Bony fishes

Answer 8

eels, herrings, trout

Question 9

swim bladder

Answer 9

a balloonlike organ that is filled with oxygen and other gases

Question 10

amphibians

Answer 10

animals that can live in water and have lungs and legs

Question 11

lungs

Answer 11

a saclike organ that takes oxygen from the air and delivers oxygen to the blood

Question 12

tadpole

Answer 12

an immature frog or toad that must live in water

Question 13

metamorphosis

Answer 13

change from an immature form to an adult

Question 14

Caecilians

Answer 14

amphibians that live in tropical areas of asia, africa, south america- no legs, bony scales

Question 15

salamanders

Answer 15

long tail, four legs,

Question 16

frogs

Answer 16

strong leg muscles, well-developed ears, vocal cords, long, sticky tongue,

Question 17

toads

Answer 17

skin is drier and bumpier, spend less time in water

Question 18

reptiles

Answer 18

first animals to live outside of water

Question 19

amniotic eggs

Answer 19

an egg that holds fluid that protects the embryo

Question 20

turtles

Answer 20

live in water most of the time-shell makes them slow and inflexible

Question 21

tortoises

Answer 21

live on land- shell makes then slow

Question 22

crocodiles

Answer 22

large reptiles found in tropical parts of asia and australia

Question 23

snakes

Answer 23

legless, carnivorous reptiles

Question 24

lizard

Answer 24

dry, scaly skin, four legs, clawed feet, long tail

Question 25

tuatara

Answer 25

only surviving member of its order, Rhynchocephalia