choanocytes
scleroblasts
pinacocytes
amoebocytes
B. scleroblasts
porifera
gatropoda
coelenterata
ctenophora
diploblastic organisation
coelenteron
canal system
coelom
protozoans
flagellates
choano flagellate
ciliates
planula larva
amphiblastula larva
trochophore larva
glochidium larva
Cliona
Hyalonema
Chalina
Euspongia
on the external body surface
line the gastric cavity
located between the outer and inner layers
in the mesodermal layer
Glass rope sponge
Venus flower basket
Boring sponge
Commercial bath sponge
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
admit water current
pass out water current
ingest food
excrete waste products
gemmules
spicules
spongin fibres
choanocytes
water vascular system
canal system
feeding current
circulating current
Cartilage
Mesenchyma
Spicules and spongin fibres
Myonemes
choanocytes
porocytes
pinacocytes
amoebocytes
asconoid
syconoid
leuconoid
rhagon
gemmules
spicules
spongin fibre
trychocysts
gemmulation
gemmation
regeneration
amphimixis
ostea
gastral cavity
gut
gullet
gemma
gemmule
bud
bulbul
Planula
Stomogastrula
Amphiblastula
Terogastrula
coelomata
acoelomata
metacoelomata
pseudocoelomates
digestion
sexual reproduction
asexual reproduction
current circulation
absorption of food material
excretion
reproduction
formation of spicules
is well developed
is in the form of a network
is made up of several interconnected ganglia
is absent
adhere
rotate
be ingested
none of these
porocytes
myocytes
choanocytes
none of these
Robert Grant
Trembly
Robert Brown
Ellias
choanocytes
porocytes
amoebocytes
pinacocytes
nutrition
respiration
excretion
sexual reproduction
free living, solitary, marine
free living, fresh water, solitary
free living, colonial, marine
Solitary, colonial, fresh water
cold water
sea water
sandy shore
brackish water