Hydra is:
A.Marine, diploblastic and radially symmetrical
B.Fresh water, diploblastic and radially symmetrical
C.Marine, riploblastic and bilaterally symmetrical
D.Fresh water, triploblastic and radially
Category: Phylum Cnidaria or Coelentrata Mcqs
Interstitial cells in Hydra form:
A.Nematocysts
B.Sex cells
C.Both (a) & (b)
D.None of these
Hydra possesses:
A.Sensory cells but no nerve cells
B.Both sensory and nerve cells
C.Neither sensory nor nerve cells
D.Nerve cells but no sensory cells
Most primitive nervous system is found In:
A.Hydra
B.Amoeba
C.Spong
D.Earthworm
Cnidarians are characterized by presence of:
A.Nematocysts
B.Gartovascular cavity
C.Both (a) & (b)
D.None of these
Which of these in Hydra will be most hindered if there were no nematocyst:
A.Ingestion
B.Food capture
C.Locomotion
D.Digestion
In blastostyles the perisarc forms:
A.Hydrotheca
B.Gonotheca
C.Blastotheca
D.None of these
Tentacles of Hydra help in:
A.Food capture
B.Locomotion
C.Both (a) & (b)
D.None of these
Discharge of nematocysts in Hydra depends upon:
A.Hormones
B.Proteins
C.Vitamins
D.Enzymes
Mucus is secreted in Hydra by:
A.Interstitial cells
B.Mucus gland cells
C.Enzyme cells
D.Epitheliomuscular cells
