A sponge differs with other metazoa in having:
A.Several mouthlets and one opening
B.Nerve cells
C.Absence of blood
D.None of these
Category: Phylum Porifera Mcqs
Which of these canal systems is found in Scypha:
A.Syconoid
B.Asconoid
C.Leuconoid
D.None of these
Water enters the body of sponges through:
A.Ostia
B.Osculum
C.Radial Canals
D.Spongocoel
Cells not found in the sponges are:
A.Cnidoblasts
B.Calcoblasts
C.Myocytes
D.Porocytes
Oscular fringe in Scypha is formed by:
A.Monaxon spicules
B.Myocytes
C.Collencytes
D.None of these
Locomotion does not occur in:
A.Earthworm
B.Leucosolenia
C.Maggot of house fly
D.Amoeba
Who used the term porfera for sponges:
A.Ellis
B.Grant
C.Huxley
D.Sollas
Olynthus is larval stage of:
A.Scypha
B.Leucosolenia
C.Spongilla
D.None of these
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
In Scypha the prosophyles are formed by:
A.Porocytes
B.Desmocytes
C.Myocytes
D.Thesocytes
