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Principle cell types present in the body wall of sponges are
1) Pinacocytes, porocytes, choanocytes, Amoebocytes
2) Pinacocytes, Choanocytes. Amoebocytes, Nephrocytes
3) Choanocytes, Nerve cells. Amoebocytes, Nephrocytes
4) Choanocytes, Porocytes, Nephrocytes, Amoebocytes
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Answer:
1)Pinacocytes, Porocytes, Choanocytes, Amoebocytes
Explanation:
Pinacocytes, which are epithelial-like cells, form the outermost layer of sponges, enclosing a jelly-like substance called mesohyl.
Between the pinacocytes, there are the porocytes that allow water into the sponge.
Choanocytes (also known as "collar cells") are cells that line the interior of asconoid, syconoid and leuconoid body type sponges .
Amoebocytes have a variety of functions: delivering nutrients from choanocytes to other cells within the sponge, giving rise to eggs for sexual reproduction (which remain in the mesohyl), delivering phagocytized sperm from choanocytes to eggs, and differentiating into more-specific cell types.
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