61.
Cliona lampa is a boring sponge found on:
A.
Molluscan shells
B.
Corals
C.
Crustaceans
D.
None of these
Answer: Option A
Explanation:
62.
Cliona chelata is a boring sponge found upon:
A.
Molluscan shells
B.
Corals
C.
Crustaceans
D.
None of these
Answer: Option A
Explanation:
63.
What is left after a bath sponge disintigrates and dries are:
A.
Muscle fibres
B.
Nerve fibres
C.
Spongin fibres
D.
Silk fibres
Answer: Option C
Explanation:
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
Answer: Option B
Explanation:
65.
Oscular fringe in Scypha is formed by:
A.
Monaxon spicules
B.
Myocytes
C.
Collencytes
D.
None of these
Answer: Option A
Explanation:
66.
In Scypha inverted 'T' shaped spicules are found:
A.
On osculum
B.
Towards spongocoel
C.
In body wall
D.
None of these
Answer: Option B
Explanation:
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
Answer: Option C
Explanation:
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
Answer: Option B
Explanation:
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
Answer: Option A
Explanation:
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
Answer: Option C
Explanation:
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