Fishes amphibians and Reptiles

Question 1

Vertebrates

Answer 1

an animal that has a backbone.

Question 2

Endotherm

Answer 2

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

Question 3

Ectotherm

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 fishs body that runs the length of the body and marks the location of sense organs that detect vibrations in water.

Question 5

gill

Answer 5

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

Question 6

jawless fish

Answer 6

Agnatha is a superclass of jawless fish in the phylum Chordata, subphylum Vertebrata, consisting of both present and extinct species. The group is sister to all vertebrates with jaws, known as gnathostomes.

Question 7

Cartilaginous fishes

Answer 7

Chondrichthyes is a class that contains the cartilaginous fishes that have skeletons primarily composed of cartilage. They can be contrasted with the Osteichthyes or bony fishes, which have skeletons primarily composed of bone tissue.

Question 8

bony fishes

Answer 8

Osteichthyes, popularly referred to as the bony fish, is a diverse taxonomic group of fish that have skeletons primarily composed of bone tissue. They can be contrasted with the Chondrichthyes, which have skeletons primarily composed of cartilage.

Question 9

swim bladder

Answer 9

The swim bladder, gas bladder, fish maw, or air bladder is an internal gas-filled organ that contributes to the ability of many bony fish (but not cartilaginous fish) to control their buoyancy, and thus to stay at their current water depth without having to waste energy in swimming.

Question 10

lung

Answer 10

The lungs are a pair of spongy, air-filled organs located on either side of the chest (thorax). The trachea (windpipe) conducts inhaled air into the lungs through its tubular branches, called bronchi.

Question 11

Tadpole

Answer 11

A tadpole is the larval stage in the life cycle of an amphibian. Most tadpoles are fully aquatic, though some species of amphibians have tadpoles that are terrestrial. Tadpoles have some features that may not be found in adult amphibians such as a lateral line, gills, and tails.

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

Caecilians are a group of limbless, vermiform or serpentine amphibians. They mostly live hidden in the ground and in stream substrates, making them the least familiar order of amphibians.

Question 14

salamanders

Answer 14

Salamanders are 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. All 10 present-day salamander families are grouped together under the order Urodela.

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

A frog is any member of a diverse and largely carnivorous group of short-bodied, tailless amphibians composing the order Anura. The oldest fossil “proto-frog” appeared in the early Triassic of Madagascar, but molecular clock dating suggests their origins may extend further back to the Permian, 265 million years ago.

Question 17

Amniontic eggs

Answer 17

An air-breathing egg characterized by a shell and extraembryonic membranes. These enclosed the amniote embryo in a private pond during its development and mediated gas-exchange with the external environment.

Question 18

turtles

Answer 18

Turtles are reptiles of the order Chelonia or Testudines. They are characterized by a special bony or cartilaginous shell developed from their ribs that acts as a shield. Colloquially, the word “turtle” is generally restricted to fresh-water and sea-dwelling Testudines.

Question 19

tortoises

Answer 19

Tortoises are reptile species of the family Testudinidae of the order Testudines.

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. Crocodylinae, all of whose members are considered true crocodiles, is classified as a biological subfamily.

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.

Question 22

snakes

Answer 22

Snakes are elongated, limbless, carnivorous reptiles of the suborder Serpentes.

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, belonging to the genus Sphenodon. Although resembling most lizards, they are part of a distinct lineage, the order Rhynchocephalia.