cellular layers
tissues
cell differentiation
organs
C. cell differentiation
Fungia
Hydra
Meandria
Tubipora
musculo-epithelial cells
musculo-nutritive cells
sensory cells
cniboblasts
marine, radial, symmetrical and diploblastic
fresh water, biradial, symmetrical and triploblastic
fresh water, radial, symmetrical and diploblastic
marine, radial, symmetrical and triploblastic
intracellular
extracellular
first extracellular, then intracellular
first intracellular, then extracellular
locomotion
food capturing
locomotion and food capturing
respiration
digestion and circulation
digestion and storage
excretion and digestion
circulation and storage
Tubularia
Obelia
Hydra
Physalia
epidermis alone
gastrodermis alone
both (a) and (b)
(a), (b) and tentacles
battery of nematocysts
group of nematocysts
armed thread
none of these
polypoid
medusoid
polymorphic
hydroid
nerve cells
sensory cells
muscle fibres
no cells
attachment
respiration
food capturing
offense
coelom
enterocoel
pseudocoel
coelenteron
Hydra
Obelia
Monkey
Elephant
Blastostyle of Obelia
Gonad of Hydra
Medusa of Obelia
Polyp of Obelia
both parts die
both parts make up the loss and form two new individuals
both parts live independently as they are
none of these
24
610
1040
4050
on the tentacles
on the hypostome
on the basal disc
in the gastrodermis
sponges
anthozoans
molluscs
hydrozoans
bacteria
water fleas
tadpoles
fishes
cataching prey
paralysing prey
testing the food
testing the water
Plenty of food is present
Pond dries up
Water becomes muddy
Hydra is alone
Zoochlorella
Chlamydomonas
Euglena
None of these
coenosarc of Obelia
perisarc of Obelia
body wall of Sea anemone
umbrella of Aurelia
single testis and many ovaries
single ovary and many testes
one testis and one ovary
many testes and many ovaries
Both show polymorphism
Both possess a larval stage in their life history called planula
Both are found in fresh water
Both havb a jelly like mesoglea with no cells
Locomotion
Predation
Both (a) and (b)
Reproduction
sensory cells
nerve cells
interstitial cells
all of these
Aurelia
Sea anemone
Obelia
Hydra
mesoglea
general surface
pellicle
gastrodermis