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CSS :: Phylum Porifera


61.  Cliona lampa is a boring sponge found on:
A. Molluscan shells B. Corals
C. Crustaceans D. None of these

62.  Cliona chelata is a boring sponge found upon:
A. Molluscan shells B. Corals
C. Crustaceans D. None of these

63.  What is left after a bath sponge disintigrates and dries are:
A. Muscle fibres B. Nerve fibres
C. Spongin fibres D. Silk fibres

64.  A funnel-like collar and a long whip-like flagellum are found in which of these cells of sponges:
A. Pinacocytes B. Choanocytes
C. Amoebocytes D. Archaeocytes

65.  Oscular fringe in Scypha is formed by:
A. Monaxon spicules B. Myocytes
C. Collencytes D. None of these

66.  In Scypha inverted 'T' shaped spicules are found:
A. On osculum B. Towards spongocoel
C. In body wall D. None of these

67.  Tri-radiate calcareous spicules are found in Scypha:
A. Arounmd the osculum, forming a fringe-like structure B. Towards the spongocoel of the animal
C. In the body wall of the animal D. Around none of these places

68.  The course of water current given below is found in thich of the following canal systems: Water ? ostia ? incurrent canals ? prosophyles ? radial canals ? apopyles ? spongocoel ? osculum ? out
A. Asconoid B. Syconoid
C. Leuconoid D. None of these

69.  In which of the canal system the following course of water current is found water enters ? ostia ? spongocoel ? osculum ? out
A. Asconoid B. Syconoid
C. Leunoid D. Rhagon

70.  In which of the canal system the following course of water current is found water enters ? dermal ostia ? subdermal spsces ? branching incurrent canals ? prosopyles ? Ilagellated chambers ? apopyles ? excurrent canals ? large channel ? osculum ? out:
A. Asconoid B. Syconoid
C. Leuconoid D. None of these




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