Which of these might have been observed in the common ancestor of chondrichthyans and osteichthyans?
A) a mineralised, bony skeleton
B) opercula
C) a spiral valve intestine
D) a swim bladder
Correct Answer:
Verified
Q24: What is believed to be the most
Q26: Ancient fossils that seem to be an
Q27: Scientific views are based on evidence rather
Q29: Jaws first occurred in which extant group
Q32: Terry catches a ray-finned fish from the
Q33: Which of the following characteristics allowed early
Q34: Arrange these groups in order from most
Q34: Which structure of the amniotic egg most
Q34: While on an intersession course in tropical
Q35: At one time, Chondrichthyes were thought to
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents