A Continuous Multinucleate Layer,formed by Cell Fusion,is Called A/an

Q17: The larval stage of the broad fish

Q18: In turbellarians,the nervous tissue is concentrated anteriorly

Q19: In the rotifer class Bdelloidea,all females are

Q20: Like the tapeworms,acanthocephalans lack<br>A)a nervous system.<br>B)a digestive

Q21: The proboscis worms belong to the phylum<br>A)Proboscisoidea.<br>B)Nematoda.<br>C)Gnathostomulida.<br>D)Aspidogastrea.<br>E)Nemertea.

Q23: Relationships within the Lophotrochoza are tentative.Examine the

Q24: The wide distribution of rotifers in lakes

Q25: Among those turbellarians possessing a digestive cavity,digestion

Q26: Covering the tegument of acanthocephalans is a

Q27: Rotifers derive their name from a characteristic