Cells picking up food from choanocytes are called:
A.Phagocytes
B.Thesocytes
C.Collencytes
D.None of these
Category: Phylum Porifera Mcqs
Ellis established the animal nature of these animals on the basis of:
A.Water current flowing constantly through their body
B.Branched colonial pattern of their structure
C.Presence of skeleton in their body
D.None of these
Choanocytes are present in sponges in:
A.Inner layer
B.Outer layer
C.Both (a) & (b)
D.None of these
A sponge can be distinguished from other animals by the presence of:
A.Hollow body
B.Dermal papillae
C.Coelenteron
D.Choanocytes
Fertilization in Leucosolenia is:
A.Cross fertlization
B.Self fertilization
C.Both of these
D.None of these
Which cell has flat surface with a central bulb-like protoplasmic mass:
A.Pinaoccyte
B.Collencyte
C.Amoebocyte
D.None of these
Incurrent canals in syconoid sponge open into radial canals with the help of:
A.Prospyles
B.Apopyles
C.Both (a) & (b)
D.None of these
Choanocytes are found lining whole of spongocoel in :
A.Leucosolenia
B.Scypha
C.Both (a) & (b)
D.None of these
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
Canal system in Euplectella is:
A.Asconoid
B.Syconoid
C.Leuconoid
D.None of these
