MCQ Solution: Animal Kingdom
Spicules in sponges are the products of
1. Scleroblasts
2. Archaeocytes
3. Choanocoytes
4. Amoebocytes
Spicules are secreted by mesenchyme cells, called scleroblasts.
Spicules are formed by carbonates of lime or silica in the form of needle like pieces.
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Animal Kingdom
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