Cold Blooded

Question 1

Vertebrates

Answer 1

Vertebrates comprise all species of animals within the subphylum Vertebrata.

Question 2

Endotherms

Answer 2

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

Question 3

Ectotherms

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 that detect pressure and vibration.

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 (2 examples)

Answer 6

(1. )They belong to the phylum Chordata, subphylum Vertebrata.
(2. )There are two living groups of jawless fish, with about 100 species in total.

Question 7

Cartilaginous Fishes (3 examples)

Answer 7

(1. )The cartilaginous fish are jawed fish with paired fins, paired nostrils, scales, two-chambered hearts, and skeletons made of cartilage rather than bone.
(2. )Examples of the cartilaginous fish include sharks, rays, and skates.

Question 8

Bony Fishes (3 examples)

Answer 8

Most bony fish are in this subclass. Examples: herring, eels, sturgeon, salmon, lantern fish, milk fish, garpikes, carp, catfish, toadfish, anglers, cod, flying fish, John Dory, sticklebacks, seahorses, scorpionfish, perch, flatfish, triggerfish, pufferfish.

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

Question 10

Amphibians

Answer 10

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

Question 11

Lungs

Answer 11

The lungs are the primary organs of respiration in humans and many other animals including a few fish and some snails. In mammals and most other vertebrates

Question 12

Tadpole

Answer 12

A tadpole (also called a pollywog) is the larval stage in the life cycle of an amphibian, particularly that of a frog or toad. They are usually wholly aquatic, though some species have tadpoles that are terrestrial.

Question 13

Metamorphosis

Answer 13

Also called transformation. A change in the form and often habits of an animal during normal development after the embryonic stage. Metamorphosis includes, in insects, 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

Caecilians are a group of limbless, serpentine amphibians.

Question 15

Salamanders

Answer 15

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.