Lencosolenia is
free living, solitary, marine
free living, fresh water, solitary
free living, colonial, marine
Solitary, colonial, fresh water
Correct Answer :
C. free living, colonial, marine
Related Questions
Sycon belongs to the class
calcarea
porifera
hexactinellida
demospongia
Phylogenetically, the sponges have evolved from
protozoans
flagellates
choano flagellate
ciliates
Which of the following statements is true of sponges ?
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
Nervous system in sponges
is well developed
is in the form of a network
is made up of several interconnected ganglia
is absent
Which one of the following is a flagellated larva of Leucosolenia ?
Planula
Parenchymula
Maggot
Kedia
The spongocoel is lined by choanocytes in
Leucosolenia
Sycon
Euspnongia
Grautia
One of the characteristic features of the sponges is the presence of
vaselike globular body
a central cavity
radial symmetry
choanocyts
The scientific name of commercial bath sponge is
Cliona
Hyalonema
Chalina
Euspongia
The canal system in sponges does not serve the function of
nutrition
respiration
excretion
sexual reproduction
If a carmine particle is put on the os~ culum of a living sponge, it will
adhere
rotate
be ingested
none of these
Which is not a larva of sponge?
Planula
Stomogastrula
Amphiblastula
Terogastrula
The larva of Sycoti is
parenchyma
alanula
redia
amphib las tula
Food is stored in-of sponges.
trophocytes
thesocytes
desmocytes
archeocytes
Exogenous budding, a type of asexual reproduction in sponges is known as
gemmulation
gemmation
regeneration
amphimixis
Collared, flagellated cells covering large parts of the inner chambers of sponges and helping to keep water circulating are
choanocytes
porocytes
pinacocytes
amoebocytes
The gametes in sponges develop from
amoebocytes
archeocytes
choanocytes
myocytes
Sponges capture their food by
pinacocytes
thesocytes
choamocytes
scleroblasts
One of the internal buds of porifera aris- j ing asexually and coming into activity on I death of parent organism is called
gemma
gemmule
bud
bulbul
Sponges with a skeleton of calcium carbonate belongs to the class
calcarea
demospongia
anthozoa
hexactinellida
The skeleton in sponges is composed of
gemmules
spicules
spongin fibre
trychocysts
The most common composition of skeleton in sponges is :
Cartilage
Mesenchyma
Spicules and spongin fibres
Myonemes
Canal system in Leucosolenia is
asconoid
syconoid
leuconoid
rhagon
Sponges belong to the phylum
sporozoa
mastigophora
porifera
coelenterata
Larva of sponge is known as
planula larva
amphiblastula larva
trochophore larva
glochidium larva
The only fresh water species of sponges is
Scypha
Euspcmgia
Spongilla
None of these
A chamber which is common in different types of canal system:
Radial canal
Inhalant canal
Spongocoel
None of these
The commercial bath sponge is made up of
siliceous spicules
spongin fibres
collagen fibres
elastic fibres
Canal system is characteristic of
corals
sponges
sea urchin
sea horse
Gemmules are helpful in
digestion
sexual reproduction
asexual reproduction
current circulation
A sponge is a
coelomata
acoelomata
metacoelomata
pseudocoelomates