Flashcards

Question 1

Vertebrates

Answer 1

Animals with a backbone.

Question 2

Endotherms

Answer 2

An organism that maintains its body at a metabolically favorable temperature, largely by the use of heat set free by its internal bodily functions instead of relying almost purely on ambient heat.

Question 3

Ectotherms

Answer 3

An animal that is dependent on external sources of body heat.

Question 4

Lateral Line

Answer 4

Canals filled with fluid.

Question 5

Gills

Answer 5

The paired respiratory organ of fishes and some amphibians, by which oxygen is extracted from water flowing over surfaces within or attached to the walls of the pharynx.

Question 6

Jawless Fishes

Answer 6

The numerous extinct species were often heavily armored and are among the earliest vertebrate fossils known.

Question 7

Cartilaginous Fishes

Answer 7

A class that contains the cartilaginous fishes: they are jawed vertebrates with paired fins, paired nares, scales, a heart with its chambers in series, and skeletons made of cartilage rather than bone.

Question 8

Bony Fishes

Answer 8

A diverse taxonomic group of fish that have skeletons primarily composed of bone tissue, as opposed to cartilage.

Question 9

Swim Bladder

Answer 9

An internal gas-filled organ that contributes to the ability of a fish to control its buoyancy, and thus to stay at the current water depth without having to waste energy in swimming.

Question 10

Amphibians

Answer 10

Amphibians are ectothermic, tetrapod vertebrates of the class Amphibia. Modern amphibians are all Lissamphibia.

Question 11

Lungs

Answer 11

It is each of the pair of organs situated within the rib cage, consisting of elastic sacs with branching passages into which air is drawn, so that oxygen can pass into the blood and carbon dioxide be removed.

Question 12

Tadpole

Answer 12

The tailed aquatic larva of an amphibian (frog, toad, newt, or salamander), breathing through gills and lacking legs until its later stages of development.

Question 13

Metamorphosis

Answer 13

The transformation of a maggot into an adult fly and a caterpillar into a butterfly and, in amphibians, the changing of a tadpole into a frog.

Question 14

Caecilians

Answer 14

A group of limbless, serpentine amphibians.

Question 15

Salamanders

Answer 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.

Question 16

Frogs

Answer 16

A diverse and largely carnivorous group of short-bodied, tailless amphibians composing the order Anura.

Question 17

Toads

Answer 17

A diverse and largely carnivorous group of short-bodied, tailless amphibians composing the order Anura.

Question 18

Reptiles

Answer 18

A group of tetrapod animals comprising today’s turtles, crocodilians, snakes, amphisbaenians, lizards, tuatara, and their extinct relatives.

Question 19

Amniotic eggs

Answer 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.

Question 20

Turtles

Answer 20

Are reptiles of the order Testudines characterised by a special bony or cartilaginous shell developed from their ribs and acting as a shield.

Question 21

Tortoises

Answer 21

Land-dwelling vertebrates in the order Testudines.

Question 22

Crocodiles

Answer 22

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

Question 23

Alligator

Answer 23

A crocodilian in the genus Alligator of the family Alligatoridae.

Question 24

Snakes

Answer 24

They are elongated, legless, carnivorous reptiles of the suborder Serpentes that can be distinguished from legless lizards by their lack of eyelids and external ears.=.

Question 25

Lizards

Answer 25

A widespread group of squamate reptiles, with approximately over 6,000 species, ranging across all continents except Antarctica, as well as most oceanic island chains.

Question 26

Tuataras

Answer 26

They are reptiles endemic to New Zealand and which, although resembling most lizards, are part of a distinct lineage, the order Rhynchocephalia.