Recent Research Indicates That the Sponges and the Eumetazoans Are

Q12: Internal buds of some species of freshwater

Q13: The flagellated cells embedded in the mesoglea

Q14: The structural protein found in sponges is<br>A)spongin.<br>B)actin.<br>C)gorgonin.<br>D)spiculin.

Q16: The most complex body organization,and the one

Q18: Multicellularity leads to larger body size because<br>A)most

Q19: The adaptive radiation of sponges is mainly

Q20: Cells that can differentiate into any other

Q22: Phagocytosis of tiny particles in sponges is

Q27: Thin,epithelial-type cells covering the outer surface of

Q38: All digestion in sponges is intracellular and