ostea
gastral cavity
gut
gullet
B. gastral cavity
cold water
sea water
sandy shore
brackish water
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
Cliona
Hyalonema
Chalina
Euspongia
is well developed
is in the form of a network
is made up of several interconnected ganglia
is absent
Planula
Stomogastrula
Amphiblastula
Terogastrula
Hyalonema
Tethya
Euplectalla
Pheronetna
Planula
Parenchymula
Maggot
Kedia
Leucosolenia
Sycon
Euspnongia
Grautia
gemma
gemmule
bud
bulbul
Glass rope sponge
Venus flower basket
Boring sponge
Commercial bath sponge
water vascular system
canal system
feeding current
circulating current
digestion
sexual reproduction
asexual reproduction
current circulation
gemmules
spicules
spongin fibre
trychocysts
choanocytes
porocytes
amoebocytes
pinacocytes
choanocytes
porocytes
pinacocytes
amoebocytes
ostea
gastral cavity
gut
gullet
gemmules
spicules
spongin fibres
choanocytes
asconoid
syconoid
leuconoid
rhagon
corals
sponges
sea urchin
sea horse
on the external body surface
line the gastric cavity
located between the outer and inner layers
in the mesodermal layer
adhere
rotate
be ingested
none of these
calcarea
demospongia
anthozoa
hexactinellida
parenchyma
alanula
redia
amphib las tula
vaselike globular body
a central cavity
radial symmetry
choanocyts
Scypha
Euspcmgia
Spongilla
None of these
cells
cell organisation
cell division
division of labour
porocytes
myocytes
choanocytes
none of these
amoebocytes
archeocytes
choanocytes
myocytes
gemmulation
gemmation
regeneration
amphimixis
protozoans
flagellates
choano flagellate
ciliates