Cold Blooded Vertebrates

Question 1

Vertebrates

Answer 1

an animal that has a backbone

Question 2

Endotherms

Answer 2

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

Question 3

Ectotherms

Answer 3

an organism that needs sources of heat outside of itself

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 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 (2 examples)

Answer 6

lamprey and hagfish

Question 7

Cartilaginous Fishes (3 examples)

Answer 7

goblin shark and whale shark

Question 8

Bony Fishes (3 examples)

Answer 8

beluga and ocean sunfish

Question 9

Swim Bladder

Answer 9

a gas filled sac that is used to control buoyancy also known as a gas bladder

Question 10

Amphibians

Answer 10

animals that can live in water that have lungs and legs

Question 11

lungs

Answer 11

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

Question 12

tadpole

Answer 12

the aquatic fish shaped larva of a frog or toad

Question 13

metamorphosis

Answer 13

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

Question 14

Caecilians (description)

Answer 14

they look like earthworms or snakes, but they have the thin moist skin of amphibians

Question 15

Salamanders (description)

Answer 15

they are small and they have a similar body shape with a tail and four legs

Question 16

Frogs (description)

Answer 16

long hind legs, a short body, webbed digits no tail and protruding eyes

Question 17

Toads (description)

Answer 17

they have dry skin, warts, crests behind the eyes, and parotoid glands

Question 18

Reptiles

Answer 18

a vertebrate animal of a class that includes snakes, lizards, crocodiles, turtles, and tortoises. They are distinguished by having a dry scaly skin and typically laying soft-shelled eggs on land

Question 19

Amniotic Eggs

Answer 19

a type of egg that is surrounded by a membrane the amnion and that in reptiles, birds, and egg-laying mammals contains a large amount of yolk and is surrounded by a shell

Question 20

Alligators (description)

Answer 20

an “armored” body with a muscular, flat tail. The skin on their back is armored with embedded bony plates called osteoderms or scutes

Question 21

Snakes (description)

Answer 21

are elongated, legless, carnivorous reptiles of the suborder Serpents. Like all squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales.

Question 22

Lizards (description)

Answer 22

have dry, scaly skin. They have four legs, clawed feet, and a long tail

Question 23

Tuataras (description)

Answer 23

resembling most lizards, they are part of a distinct lineage, the order Rhynchocephalia