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Calcareous spicules are formed by
(a) Scleroblasts
(by Calcoblasts
(c) Silicoblasts
(d) Spongioblasts
The cavity present in sponge is
(a) Gastrovascular cavity (b) Spongocoel
(c) Paragastric cavity (d) Both b and c
In sponges, nitrogenous waste is eliminated in the
( a) Ammonia
(b) Urea
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You know the right answer?
Calcareous spicules are formed by
(a) Scleroblasts
(by Calcoblasts
(c) Silicoblasts
...
(by Calcoblasts
(c) Silicoblasts
...
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