A) Thesocytes
B) Pinacocytes
C) Cnidocytes
D) Archaeocytes
Correct Answer: D
Solution :
Archaeocytes are the totipotent cells, which provide great regenerating power to sponges. Sex cells (sperm and ova arise from undifferentiated archaeocytes). Thesocytes are the amoebocytes cells with reserve food granules. Pinacocytes are the polygonal flat cells present as outer layer of cells, called pinacoderm lining die spongocoel or body cavity in Leucosolema. Cnidocytes occur in entire epidermis except that of basal disc and are found only in cnidarians. Cnidocytes are spherical or oval cells.
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