Question

Agnatha or Cyclostomata are characterized
by
(a) absence of mouth, presence of single nostril
(b) absence of jaws and presence of suctorial
mouth
(c) presence of suctorial mouth, absence of jaws,
presence of single nostril and unpaired fins
(d) round mouth with triradiate lips.​

Answer 1

Answer:

I think option A I also don't no exact answer

Answer 2

Answer:

c) presence of suctorial mouth,................................................