fish

Question 1

spinal cord

Answer 1

vertebral column

Question 2

cells are a temporary group of cells unique to vertebrates that arise from the embryonic echinoderm cell layer

Answer 2

neural crest

Question 3

a flattened appendage on various parts of the body of many aquatic vertebrates

Answer 3

fin

Question 4

each of the small, thin horny or bony plates protecting the skin of fish

Answer 4

scale

Question 5

a structure that closes or covers an aperture, in particular

Answer 5

operculum

Question 6

each of the two upper cavities of the heart from which blood is passed to the ventricles

Answer 6

atrium

Question 7

each of the two main chambers of the heart, left and right

Answer 7

ventricle

Question 8

The structural and functional unit of the kidney

Answer 8

nephron

Question 9

is a system of sense organs found in aquatic vertebrates

Answer 9

lateral line

Question 10

is the eggs and sperm released or deposited into water by aquatic animals

Answer 10

spawning

Question 11

internal gas-filled organ that contributes to the ability of many bony fish

Answer 11

swim bladder

Question 12

primitive vertebrates without jaws

Answer 12

jawless fish

Question 13

having the skeleton wholly or largely composed of cartilage

Answer 13

cartilaginous fish

Question 14

Any of numerous ray-finned fishes

Answer 14

bony fish