cold animals

Question 1

Vertebrates

Answer 1

all species of animals within the subphylum Vertebrata, including all mammals, birds, reptiles, amphibians, and fish. Vertebrates represent the overwhelming majority of the phylum Chordata, with currently about 69,963 species described.

Question 2

an animal that is dependent on or capable of the internal generation of heat; a warm-blooded animal.

Answer 2

Endotherm

Question 3

Ectotherm

Answer 3

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

Question 4

Lateral Line

Answer 4

a visible line along the side of a fish consisting of a series of sense organs which detect pressure and vibration.

Question 5

Gill

Answer 5

he 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

hagfish,lampreys

Question 7

Cartilaginous fishes

Answer 7

shark,stingray

Question 8

Bony fishes

Answer 8

lungfishes,masked butterfly fish

Question 9

Swim bladder

Answer 9

is an internal gas-filled organ that contributes to the ability of many bony fish to control their buoyancy, and thus to stay at their current water depth without having to expend energy in swimming.

Question 10

Lung

Answer 10

pair of spongy, air-filled organs located on either side of the chest (thorax)

Question 11

Tadpole

Answer 11

aquatic larval stage of frogs and toads

Question 12

Metamorphosis

Answer 12

the process of transformation from an immature form to an adult form in two or more distinct stages.

Question 13

Caecilians

Answer 13

are a group of limbless, vermiform or serpentine amphibians. They mostly live hidden in the ground and in stream substrates,

Question 14

Salamanders

Answer 14

are a group of amphibians typically characterized by their lizard-like appearance, with slender bodies, blunt snouts, short limbs projecting at right angles to the body,

Question 15

Frogs

Answer 15

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

Question 16

Toads

Answer 16

is a common name for certain frogs, especially of the family Bufonidae, that are characterized by dry, leathery skin, short legs, and large bumps covering the parotoid glands

Question 17

Amniotic egg

Answer 17

An air-breathing egg characterized by a shell and extraembryonic membranes

Question 18

Turtles

Answer 18

are an order of reptiles known as Testudines, characterized by a shell developed mainly from their ribs. Modern turtles are divided into two major groups, the side-necked turtles and hidden neck turtles which differ in the way the head retracts.

Question 19

Tortoises

Answer 19

are reptiles of the family Testudinidae of the order Testudines. They are particularly distinguished from other turtles by being exclusively land-dwelling, while many other turtle species are at least partly aquatic

Question 20

Crocodiles

Answer 20

Crocodiles or true crocodiles are large semiaquatic reptiles that live throughout the tropics in Africa, Asia, the Americas and Australia.

Question 21

Alligators

Answer 21

An alligator is a crocodilian in the genus Alligator of the family Alligatoridae. The two extant species are the American alligator and the Chinese alligator. Additionally, several extinct species of alligator are known from fossil remains.

Question 22

Snakes

Answer 22

Snakes are elongated, limbless, carnivorous reptiles of the suborder Serpentes. Like all other squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales

Question 23

Lizards

Answer 23

Lizards are a widespread group of squamate reptiles, with over 6,000 species, ranging across all continents except Antarctica, as well as most oceanic island chains

Question 24

Tuataras

Answer 24

Tuatara are reptiles endemic to New Zealand. Although resembling most lizards, they are part of a distinct lineage, the order Rhynchocephalia.