Sharks Have

Q27: In the elasmobranchs,the sexes are separate and

Q47: Among the fastest swimmers,tunas swim by<br>A)undulating their

Q48: The function of the spiracle in the

Q49: The _ hypothesis suggests that the vertebrae

Q50: Research by Hasler and others showed olfactory

Q51: The chimaeras<br>A)include representatives called ratfish and rabbitfish.<br>B)have

Q53: A lobe-finned fish thought to have been

Q54: The ammocoetes is the larval form of

Q56: Teleosts have either cycloid or _ scales.

Q57: Members of the Chondrichthyes had ancestors with