What is Euplectella commonly called ?
Glass rope sponge
Venus flower basket
Boring sponge
Commercial bath sponge
Correct Answer :
B. Venus flower basket
Related Questions
Canal system is characteristic of
corals
sponges
sea urchin
sea horse
The larva of Sycoti is
parenchyma
alanula
redia
amphib las tula
Collared, flagellated cells covering large parts of the inner chambers of sponges and helping to keep water circulating are
choanocytes
porocytes
pinacocytes
amoebocytes
Path of water in a sponge is
pinacocyte � choanocyte � osculum
osculum > spongocoel � ostia
ostia > spongocoel � osculum
osculum � ostia > spongocoel
A chamber which is common in different types of canal system:
Radial canal
Inhalant canal
Spongocoel
None of these
Ostia are meant to
admit water current
pass out water current
ingest food
excrete waste products
What is Euplectella commonly called ?
Glass rope sponge
Venus flower basket
Boring sponge
Commercial bath sponge
Which is not a larva of sponge?
Planula
Stomogastrula
Amphiblastula
Terogastrula
The animal nature of sponges was established by
Robert Grant
Trembly
Robert Brown
Ellias
The pathway of entring and coming out of water of sponges is
water vascular system
canal system
feeding current
circulating current
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
The central cavity of the sponge is also called
ostea
gastral cavity
gut
gullet
Canal system in Leucosolenia is
asconoid
syconoid
leuconoid
rhagon
One of the characteristic features of the sponges is the presence of
vaselike globular body
a central cavity
radial symmetry
choanocyts
Food is stored in-of sponges.
trophocytes
thesocytes
desmocytes
archeocytes
Difference between a sponge and a metazoan is that sponge do not contain
cells
cell organisation
cell division
division of labour
The spongocoel is lined by choanocytes in
Leucosolenia
Sycon
Euspnongia
Grautia
Sycon belongs to the class
calcarea
porifera
hexactinellida
demospongia
Phylogenetically, the sponges have evolved from
protozoans
flagellates
choano flagellate
ciliates
Choanocytes in sponges are present
on the external body surface
line the gastric cavity
located between the outer and inner layers
in the mesodermal layer
The scientific name of commercial bath sponge is
Cliona
Hyalonema
Chalina
Euspongia
Exogenous budding, a type of asexual reproduction in sponges is known as
gemmulation
gemmation
regeneration
amphimixis
Lencosolenia is
free living, solitary, marine
free living, fresh water, solitary
free living, colonial, marine
Solitary, colonial, fresh water
The skeleton in sponges is composed of
gemmules
spicules
spongin fibre
trychocysts
Animals of phylum porifera are characterised by
diploblastic organisation
coelenteron
canal system
coelom
Sponges are not found in
cold water
sea water
sandy shore
brackish water
Asexual reproduction in sponges is by forming buds and
gemmules
spicules
spongin fibres
choanocytes
The commercial bath sponge belongs to
porifera
gatropoda
coelenterata
ctenophora
Which of the following is given as a gift in Japan?
Hyalonema
Tethya
Euplectalla
Pheronetna
Sponges belong to the phylum
sporozoa
mastigophora
porifera
coelenterata