Polymorphism is found in:
A.Hydra
B.Physailia
C.Aurelia
D.All of these
Category: Phylum Cnidaria or Coelentrata Mcqs
Which structures in Hydra correspond to pseudopodia of Amoeba functionally?
A.Hypostome
B.Nematocyst
C.Tentacles
D.Mouth
Medusa of Obelia is:
A.Free swimming
B.Fixed and non-mobile
C.Floating
D.None of these
Hydrotheca is formed around:
A.Polyps of Obelia
B.Blastostyles of Obelia
C.Both of these
D.None of these
Most favourable food for Hydra is:
A.Water-fleas
B.Bacteria
C.Fishes
D.Frog tadpoles
Animals having no specialized cells to respiration are:
A.Whales
B.Hydras
C.Earthworms
D.Cockroaches
Pentrant, volvent and glutinants are various kinds of:
A.Mouth parts of mosquito
B.Laraval stages of Ascaris
C.Nematocysts of Hydra
D.None of these
Atrichous isorhizas are with:
A.Spiny base
B.Spine on whole tube
C.No spines
D.Spines on butt
Nematocyst is stimulated to discharge by:
A.Cnidocil
B.Lesso
C.Fibres of capsule
D.None of these
