ellamarie61771 ellamarie61771

12-04-2024
Biology

contestada

Agnatha or Cyclostomata are characterised by
a. Absence of jaws and presence of suctorial mouth.
b. Presence of suctorial mouth, the absence of jaws, the presence of single nostril and unpaired fins.
c. Absence of mouth, presence of single nostril.
d. Round mouth with triradiate lips.

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