sponges
anthozoans
molluscs
hydrozoans
B. anthozoans
digestion and circulation
digestion and storage
excretion and locomotion
circulation and storage
Endodermal cells
Mouth
Nematocysts
Tentacles
Fungia
Hydra
Meandria
Tubipora
cataching prey
paralysing prey
testing the food
testing the water
asymmetrical
bilaterally symmetrical
radially symmetrical
irregular
protogynous
hermaphrodite
monoecious
protandrous
on the tentacles
on the hypostome
on the basal disc
in the gastrodermis
diploblastic
integument
multicellular
triploblastic
single testis and many ovaries
single ovary and many testes
one testis and one ovary
many testes and many ovaries
Tubipora
Astrangia
Meandra
Aeropora
24
610
1040
4050
upper part
middle part
tentacles
lower part
marine, radial, symmetrical and diploblastic
fresh water, biradial, symmetrical and triploblastic
fresh water, radial, symmetrical and diploblastic
marine, radial, symmetrical and triploblastic
sponges
anthozoans
molluscs
hydrozoans
pinnate
hollow
solid
frilled
the hypostome
the junction of hypostome and stomach
in junction of stomach and stalk
the stomach
Sea anemone
Aurelia
Obelia
Hydra
Plenty of food is present
Pond dries up
Water becomes muddy
Hydra is alone
mouth only
mouth and anus
large number of pores in the body wall
both (b) and (c)
Hydra
Obelia
Monkey
Elephant
steptoline or atrichous
streptoline or holotrichous
volvent or desmonemes
penetrant or stenoteles
hydrula
planula
tadpole
amphiblastula
both parts die
both parts make up the loss and form two new individuals
both parts live independently as they are
none of these
ectoderm
endoderm
mesoglea
coelenteron
polypoid
medusoid
polymorphic
hydroid
Hydra
Aleyonium
Aurelia
Physalia
bacteria
water fleas
tadpoles
fishes
epidermis alone
gastrodermis alone
both (a) and (b)
(a), (b) and tentacles
Aurelia
Metridium
Physalia
Tubipora
hydrozoa
scyphozoa
actinozoa
all of these