Question
Question: Jaws are absent in...
Jaws are absent in
A
Protochordata
B
Protochordata and cyclostomata
C
Amphioxus and balanoglossus
D
Herdmania and myxine
Answer
Protochordata and cyclostomata
Explanation
Solution
Cyclostomata is a class of group Agnatha. Where paired appendages girdles and jaw are absent. Some workers include even the protochordates in Agnatha.