Class Myxini from Group Agnatha

Question 1

What is the body like?

Answer 1

slender, eel-like, rounded with naked skin and has slime glands

Question 2

Does it have any appendages or fins?

Answer 2

No paired appendages and no dorsal fin

Question 3

What is the skeleton made of?

Answer 3

Fibrous and cartilaginous skeleton

Question 4

What is the notochord like?

Answer 4

Notochord persistent

Question 5

What is the biting mouth like?

Answer 5

two rows of eversible teeth and no jaws

Question 6

What is the terminal mouth like?

Answer 6

four pairs of tentacles

Question 7

What is the nasal sac like?

Answer 7

Nasal sac with duct to pharynx

Question 8

How many gills?

Answer 8

5-16 pairs of gills with variable number of gill openings

Question 9

What is the nerve cord like?

Answer 9

Dorsal nerve cord with differentiated brain

Question 10

What are the sense organs like?

Answer 10

Sense organs of taste, smell, and hearing; almost completely blind

Question 11

What is fertilization like?

Answer 11

External fertilization

Question 12

What is the class that has hagfishes?

Answer 12

Myxini

Question 13

What organism does Myxini has?

Answer 13

Hagfishes

Question 14

Myxini is in the Subphylum?

Answer 14

Hyperotreti