The only fresh water species of sponges is
Scypha
Euspcmgia
Spongilla
None of these
Correct Answer :
C. Spongilla
Related Questions
Asexual reproduction in sponges is by forming buds and
gemmules
spicules
spongin fibres
choanocytes
Sponges with a skeleton of calcium carbonate belongs to the class
calcarea
demospongia
anthozoa
hexactinellida
The gametes in sponges develop from
amoebocytes
archeocytes
choanocytes
myocytes
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
Animals of phylum porifera are characterised by
diploblastic organisation
coelenteron
canal system
coelom
Which one of the following is a flagellated larva of Leucosolenia ?
Planula
Parenchymula
Maggot
Kedia
Sponges belong to the phylum
sporozoa
mastigophora
porifera
coelenterata
Ostia are meant to
admit water current
pass out water current
ingest food
excrete waste products
Cells that aid in locomotion of a sponge are
porocytes
myocytes
choanocytes
none of these
Path of water in a sponge is
pinacocyte � choanocyte � osculum
osculum > spongocoel � ostia
ostia > spongocoel � osculum
osculum � ostia > spongocoel
The most common composition of skeleton in sponges is :
Cartilage
Mesenchyma
Spicules and spongin fibres
Myonemes
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
Food is stored in-of sponges.
trophocytes
thesocytes
desmocytes
archeocytes
Which of the following is given as a gift in Japan?
Hyalonema
Tethya
Euplectalla
Pheronetna
Sycon belongs to the class
calcarea
porifera
hexactinellida
demospongia
A chamber which is common in different types of canal system:
Radial canal
Inhalant canal
Spongocoel
None of these
The phylum porifera contains most primitive of multicellular animals called
corals
sea pen
comb jellies
sponges
Sponges capture their food by
choanocytes
porocytes
amoebocytes
pinacocytes
What is Euplectella commonly called ?
Glass rope sponge
Venus flower basket
Boring sponge
Commercial bath sponge
The scientific name of commercial bath sponge is
Cliona
Hyalonema
Chalina
Euspongia
The spongocoel is lined by choanocytes in
Leucosolenia
Sycon
Euspnongia
Grautia
The commercial bath sponge belongs to
porifera
gatropoda
coelenterata
ctenophora
A sponge is a
coelomata
acoelomata
metacoelomata
pseudocoelomates
The skeleton of sponges is mostly composed of
choanocytes
scleroblasts
pinacocytes
amoebocytes
Sponges are not found in
cold water
sea water
sandy shore
brackish water
Difference between a sponge and a metazoan is that sponge do not contain
cells
cell organisation
cell division
division of labour
The only fresh water species of sponges is
Scypha
Euspcmgia
Spongilla
None of these
Canal system in Leucosolenia is
asconoid
syconoid
leuconoid
rhagon
The skeleton in sponges is composed of
gemmules
spicules
spongin fibre
trychocysts
The animal nature of sponges was established by
Robert Grant
Trembly
Robert Brown
Ellias