Chapter 8 Flashcards
Fish, Reptiles, and Amphibians
What are animals that regulate their blood temperature by external means?
Cold-blooded
What group of fish has webbed rays attached to the body by a lobe (a single bone surrounded by muscle)?
Lobe-finned fish
What are overlapping bony plates that protrude from the fish’s skin?
Scales
What are the w-shaped bands of muscle in a fish?
Myomeres
What is the hard, movable plate that protects and covers all the delicate gill structures?
Operculum
What is the fish that can best survive on land (for up to three days)?
Mudskipper
What is the system of nerve endings that extend over the fish’s head and sides and allow for sensing vibration and pressure changes?
Lateral line
What is the process of fish reproduction in which the female lays large quantities of eggs in the water?
Spawning
What is the scientific term for fish eggs?
Roe
What is the fluid released by a male fish onto the roe?
Milt
What is the term for fish that give birth to live young?
Livebearers
What is the large, gas-filled organ that allows the fish to stay suspended in any depth of water?
Swim bladder
What is the term for the current generating cells inside the electric organ of electric fish?
Electrocytes
What is the light producing organ in certain fish?
Photophore
What are the two classes of cartilaginous fish?
Chondrichthyes and Cyclostomata
What are the placoid scales that cover sharks and make them feel like sandpaper?
Denticles
What are the paired holes for inhalation behind the eyes of sharks?
Spiracles
What is the protective case in which sharks lay their eggs called?
Mermaid’s purse
What is the largest carnivorous fish?
Great white shark
What is the unusual looking shark?
Hammerhead shark
What shark is the only known shark that comes to the surface to gulp air?
Sand tiger shark
What is the largest known fish?
Whale shark
What is the category of cartilaginous fish with flattened bodies?
Rays (also called batoids)
What is the group of cartilaginous fish that has two dorsal fins near the tip of the tail and lays eggs?
Skates
What type of cartilaginous fish has an unusual nose?
Sawfish
What is the name of a sawfish’s unusual nose?
Rostrum
What is the group of fish that has only one gill opening that is covered by an operculum?
Chimaera
What is the cartilaginous fish with pore-like gill openings?
Hagfish
Hagfish have pores along the side of their bodies that excrete proteins produced by what glands?
Slime glands
What is the protective layer inside reptile eggs?
Amnion