Collared, flagellated cells covering large parts of the inner chambers of sponges and helping to keep water circulating are
choanocytes
porocytes
pinacocytes
amoebocytes
Correct Answer :
A. choanocytes
Related Questions
Phylogenetically, the sponges have evolved from
protozoans
flagellates
choano flagellate
ciliates
The animal nature of sponges was established by
Robert Grant
Trembly
Robert Brown
Ellias
Animals of phylum porifera are characterised by
diploblastic organisation
coelenteron
canal system
coelom
Sponges belong to the phylum
sporozoa
mastigophora
porifera
coelenterata
Canal system is characteristic of
corals
sponges
sea urchin
sea horse
Sponges with a skeleton of calcium carbonate belongs to the class
calcarea
demospongia
anthozoa
hexactinellida
The pathway of entring and coming out of water of sponges is
water vascular system
canal system
feeding current
circulating current
The skeleton in sponges is composed of
gemmules
spicules
spongin fibre
trychocysts
The phylum porifera contains most primitive of multicellular animals called
corals
sea pen
comb jellies
sponges
Larva of sponge is known as
planula larva
amphiblastula larva
trochophore larva
glochidium larva
A sponge is a
coelomata
acoelomata
metacoelomata
pseudocoelomates
Food is stored in-of sponges.
trophocytes
thesocytes
desmocytes
archeocytes
Gemmules are helpful in
digestion
sexual reproduction
asexual reproduction
current circulation
The commercial bath sponge belongs to
porifera
gatropoda
coelenterata
ctenophora
Which one of the following is a flagellated larva of Leucosolenia ?
Planula
Parenchymula
Maggot
Kedia
The commercial bath sponge is made up of
siliceous spicules
spongin fibres
collagen fibres
elastic fibres
The most common composition of skeleton in sponges is :
Cartilage
Mesenchyma
Spicules and spongin fibres
Myonemes
A chamber which is common in different types of canal system:
Radial canal
Inhalant canal
Spongocoel
None of these
Collared, flagellated cells covering large parts of the inner chambers of sponges and helping to keep water circulating are
choanocytes
porocytes
pinacocytes
amoebocytes
Sycon belongs to the class
calcarea
porifera
hexactinellida
demospongia
Which is not a larva of sponge?
Planula
Stomogastrula
Amphiblastula
Terogastrula
Asexual reproduction in sponges is by forming buds and
gemmules
spicules
spongin fibres
choanocytes
Path of water in a sponge is
pinacocyte � choanocyte � osculum
osculum > spongocoel � ostia
ostia > spongocoel � osculum
osculum � ostia > spongocoel
The gametes in sponges develop from
amoebocytes
archeocytes
choanocytes
myocytes
Which of the following is given as a gift in Japan?
Hyalonema
Tethya
Euplectalla
Pheronetna
Exogenous budding, a type of asexual reproduction in sponges is known as
gemmulation
gemmation
regeneration
amphimixis
The skeleton of sponges is mostly composed of
choanocytes
scleroblasts
pinacocytes
amoebocytes
The only fresh water species of sponges is
Scypha
Euspcmgia
Spongilla
None of these
Cells that aid in locomotion of a sponge are
porocytes
myocytes
choanocytes
none of these
The scientific name of commercial bath sponge is
Cliona
Hyalonema
Chalina
Euspongia