vaselike globular body
a central cavity
radial symmetry
choanocyts
D. choanocyts
Scypha
Euspcmgia
Spongilla
None of these
on the external body surface
line the gastric cavity
located between the outer and inner layers
in the mesodermal layer
gemmules
spicules
spongin fibres
choanocytes
choanocytes
porocytes
amoebocytes
pinacocytes
Planula
Parenchymula
Maggot
Kedia
porocytes
myocytes
choanocytes
none of these
ostea
gastral cavity
gut
gullet
adhere
rotate
be ingested
none of these
gemmulation
gemmation
regeneration
amphimixis
coelomata
acoelomata
metacoelomata
pseudocoelomates
asconoid
syconoid
leuconoid
rhagon
gemmules
spicules
spongin fibre
trychocysts
water vascular system
canal system
feeding current
circulating current
corals
sea pen
comb jellies
sponges
pinacocyte � choanocyte � osculum
osculum > spongocoel � ostia
ostia > spongocoel � osculum
osculum � ostia > spongocoel
free living, solitary, marine
free living, fresh water, solitary
free living, colonial, marine
Solitary, colonial, fresh water
nutrition
respiration
excretion
sexual reproduction
Glass rope sponge
Venus flower basket
Boring sponge
Commercial bath sponge
corals
sponges
sea urchin
sea horse
siliceous spicules
spongin fibres
collagen fibres
elastic fibres
protozoans
flagellates
choano flagellate
ciliates
Radial canal
Inhalant canal
Spongocoel
None of these
trophocytes
thesocytes
desmocytes
archeocytes
One mouth and innumerable exits
Mouth serves for both, ingestion and egestion
Innumerable mouths and one exit
The body encloses a single cavity the coeienteron
diploblastic organisation
coelenteron
canal system
coelom
gemma
gemmule
bud
bulbul
amoebocytes
archeocytes
choanocytes
myocytes
Cartilage
Mesenchyma
Spicules and spongin fibres
Myonemes
Leucosolenia
Sycon
Euspnongia
Grautia
Planula
Stomogastrula
Amphiblastula
Terogastrula