Cold-Blooded Vertebrates

Question 1

animals with backbones

Answer 1

Vertebrates

Question 2

in bony fishes a gas-filled sac that is used to control buoyancy

Answer 2

swim bladder

Question 3

an animal that can use body heat from chemical reactions in the body’s cells to maintain a constant body temperature

Answer 3

endotherm

Question 4

an organism that needs sources of heat outside itself

Answer 4

ectotherms

Question 5

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

Answer 5

lateral line

Question 6

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

Answer 6

gills

Question 7

lampreys and hagfish

Answer 7

jawless fish

Question 8

shark, stingray, sawfish

Answer 8

Cartilaginous Fishes

Question 9

catfish, tuna, eel

Answer 9

bony fishes

Question 10

frogs, salamanders, slow worms

Answer 10

amphibians

Question 11

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

Answer 11

lungs

Question 12

the larval stage in the life cycle of an amphibian

Answer 12

tadpole

Question 13

a phase in the life cycle of many animals during during which a rapid change from the immature form of an organism to the adult form takes place

Answer 13

metamorphosis

Question 14

a group of limbless, serpentine amphibians

Answer 14

Caecilians

Question 15

a group of amphibians typically characterized by a lizard-like appearance, with slender bodies, blunt snouts, short limbs projecting at right angles to the body, and the presence of a tail in both larvae and adults

Answer 15

salamanders

Question 16

any member of a diverse and largely carnivorous group of short-bodied, tailless amphibians composing the order Anura

Answer 16

frogs

Question 17

characterized by dry, leathery skin, short legs, and parotoid glands

Answer 17

toads

Question 18

turtles, crocodilians, snakes, amphisbaenians, lizards, tuatara,

Answer 18

reptiles

Question 19

a clade of tetrapod vertebrates comprising the reptiles, birds, and mammals that lay their eggs on land or retain the fertilized egg within the mother

Answer 19

Amniotic Eggs

Question 20

characterised by a special bony or cartilaginous shell developed from their ribs and acting as a shield

Answer 20

turtles

Question 21

shielded from predators by a shell, the top part of the shell is the carapace, the underside is the plastron, and the two are connected by the bridge

Answer 21

tortoises

Question 22

large aquatic reptiles that live throughout the tropics in Africa, Asia, the Americas and Australia

Answer 22

Crocodiles

Question 23

first appeared during the Paleocene epoch about 37 million years ago

Answer 23

alligator

Question 24

elongated, legless, carnivorous reptiles

Answer 24

snakes

Question 25

a widespread group of squamate reptiles

Answer 25

lizards

Question 26

are reptiles endemic to New Zealand

Answer 26

Tuataras