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Question 1

Vertebrates

Answer 1

Vertebrates comprise 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

Endotherm

Answer 2

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

Question 3

Ectotherm

Answer 3

An ectotherm is an organism in which internal physiological sources of heat are of relatively small or of quite negligible importance in controlling body temperature. Such organisms rely on environmental heat sources, which permit them to operate at very economical metabolic rates

Question 4

Lateral Line

Answer 4

The lateral line, also called lateral line system or lateral line organ, is a system of sensory organs found in fish, used to detect movement, vibration, and pressure gradients in the surrounding water.

Question 5

Gill

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

Agnatha is an infraphylum of jawless fish in the phylum Chordata, subphylum Vertebrata, consisting of both present and extinct species. Among recent animals, cyclostomes are 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.

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 expend energy in swimming.

Question 10

Lung

Answer 10

One of a pair of organs in the chest that supplies the body with oxygen, and removes carbon dioxide from the body.

Question 11

Tadpole

Answer 11

tadpole, also called polliwog, aquatic larval stage of frogs and toads. Compared with the larvae of salamanders, tadpoles have short, oval bodies, with broad tails, small mouths, and no external gills. The internal gills are concealed by a covering known as an operculum.

Question 12

Metamorphosis

Answer 12

Metamorphosis is an allegorical novella written by Franz Kafka which was first published in 1915. One of Kafka’s best-known works, Metamorphosis tells the story of salesman Gregor Samsa, who wakes one

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. Caecilians are mostly distributed in the tropics of South and Central America, Africa, and southern Asia

Question 14

Salamanders

Answer 14

Salamanders 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, and the presence of a tail in both larvae and adults. All ten extant 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

Toad 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

The amniotic egg: 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 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

Tortoises 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. Like other turtles, tortoises have a shell to protect from predation and other threats.

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.

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. Their name derives from the Māori language, and means “peaks on the back”.