Exit for water current in sponges is:
A.Ostia
B.Osculum
C.Cloaca
D.None of these
A.Ostia
B.Osculum
C.Cloaca
D.None of these
A.Only extracellular
B.First extracellular then intracellular
C.Only intracellular
D.First intracellular then extracellular
A.Nematocysts
B.Nematoblasts
C.Choanocytes
D.Chondriocytes
A.Bilaterally symmetrical
B.Radially symmetrical
C.Asymmetrical and radial
D.Asymmetrical
A.Calcoblasts
B.Silicoblasts
C.Spongioblasts
D.None of these
A.Molluscan shells
B.Corals
C.Crustaceans
D.None of these
A.Asconoid
B.Syconoid
C.Leuonoid
D.Rhagon type
A.Asconoid
B.Syconoid
C.Leuconoid
D.None of these
A.Incurrent canal
B.Excurrent canal
C.Radial chamber
D.Spongocoel
A.A sexual reproduction
B.Asexual reproduction
C.Only dissemination
D.None of these