A Lobe-Finned Fish Thought to Have Been Extinct for 70

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

Q54: The ammocoetes is the larval form of

Q55: Sharks have<br>A)placoid scales.<br>B)ctenoid scales.<br>C)cycloid scales.<br>D)ganoid scales.

Q56: Teleosts have either cycloid or _ scales.

Q57: Members of the Chondrichthyes had ancestors with