Which of these has no skeleton whatsoever:
A.Butterfly
B.Sponge
C.Star-fish
D.Jelly-fish
A.Butterfly
B.Sponge
C.Star-fish
D.Jelly-fish
A.Nematocysts
B.Secretory cells
C.Epitheliomuscular cells
D.None of these
A.Hollow
B.Solid
C.Irregular
D.None of these
A.Pelarized nerve cells
B.Non-polar nerve cells
C.Ganglionated nerve cords
D.Well defined nerves
A.Hytpostoma
B.Pedal disc
C.Both (a) & (b)
D.None of these
A.Host
B.Parasite
C.Both (a) & (b)
D.None of these
A.Tentacles
B.Body surface
C.Namatocysts
D.Coelenteron
A.Extracelular
B.Intracellular
C.Both (a) & (b)
D.None of these
A.Bilateral
B.Radial
C.Irregular
D.None of these
A.Gastrodermal cells
B.Epitheliomuscular cells
C.Mesogloea
D.Interstitial cells