The beaded processes of sensory cells in Hydra make synapses with processes of:
A.Nere cells
B.Interstititial cells
C.Epithelio-muscular cells
D.Nutritive muscular cells
Category: Phylum Cnidaria or Coelentrata Mcqs
In Hydra the reporduction is:
A.Sexual
B.Asexual
C.Both esexual and sexual
D.None of these
Which of these are not tissue grade animals:
A.Sponges
B.Cnidarians
C.Annelids
D.Mollucs
The gastrovascular cavity of cnidarians has:
A.Only one opening called mouth
B.Has separate opening for mouth and anus
C.Has only one mouth and several pore outside
D.Has none of these
Budding in Hydra occurs during:
A.Warm months
B.Winter months
C.Both (a) & (b)
D.None of these
Term coelnteron means:
A.A gut cavity
B.A coelomic cavity
C.A blood cavity
D.None of these
In which of these the perisarc forms shelf like ring in Obelia:
A.Hydranth
B.Blastostyles
C.Both (a) & (b)
D.None of these
Mesogloea is secreted in Hydra by:
A.Epidermis
B.Gastrodermis
C.Both (a) & (b)
D.None of these
In a polymorphic cnidarians there are:
A.Several types of zooids distinct only morphologically
B.Several types of zooids distinct both morphologically and physiologically
C.Several types of zooids distinct only physiologically
D.Only one type of zooids carrying out different functions from time to time.
Hydranths in Obelia colony are:
A.Feeding zooids
B.Sensory zooids
C.Reproductive zooids
D.None of these
