Chapter 30

Question 0

Fin

Answer 0

In fishes, fan shaped membrane used for balance, swimming, and steering

Question 1

Cartilage

Answer 1

Tough flexible material making up of skeletons of agnathans, sharks

Question 2

Lateral line system

Answer 2

Line of fluid filled canals running along the side of fishes that enable to detect movement and vibrations

Question 3

Scale

Answer 3

Thin bony plates that come in a variety of shapes and sizes formed from the skin of many fishes and reptiles

Question 4

Spawning

Answer 4

Method of reproduction of fishes where a large number of eggs are fertilized outside the body

Question 5

Swim bladder

Answer 5

Thin walled, internal sac found just below the backbone in bony fishes; helps fish control swimming depth

Question 6

Ectotherm

Answer 6

Animal that has a variable body temperature and derives it’s heat from external sources

Question 7

Vocal cord

Answer 7

Sound producing bands of tissue in the throat that produce as air passes over them