A single mature Hydra may bear:
A.One ovary and one testis
B.Many ovaries and testes
C.Many ovaries and one testis
D.One ovary and many testes
Category: Phylum Cnidaria or Coelentrata Mcqs
Tentacles of Hydra are:
A.4/- 10 and hollow
B.10/12 – 40 and solid
C.5/6 – 10 and solid
D.None of these
Hydra shows positive responses as well as negative responses, in dim and bright light it shows:
A.Negative responses to both
B.Positive response to both
C.Positive response to weak light and negative to bright one
D.Negative response to weak light and positive response to bright light
Body wall of Hydra is formed from:
A.Extoderm and mesoderm
B.Ectoderm and endoderm
C.Endoderm and mesoderm
D.Ectoderm, endoderm and mesogloea
Larva of Hydra is called:
A.Planula
B.Amphiblastula
C.Scyphistoma
D.Miracidium
Most canidarians exhibit
A.Polymorphism
B.Polygynae
C.Polyandry
D.None of these
The body cavity of Hydra is:
A.Hydrocoel
B.Homocoel
C.Coelom
D.Coelenteron
Medusae are formed by:
A.Gastrozooids through asexual reproduction
B.Blastostyles through asexual reproduction
C.Both through sexual reproduction
D.None of these processes
Hydra feeds upon:
A.Fishes
B.Small crustaceans
C.Aglae
D.Crabs
Radial symunetry is found in:
A.Platyhelminths
B.Cnidarians
C.Annelids
D.Molluscs
