Phylum Porifera and Sponges Quiz:
Which of the following is harmful to pearl industry ?
(a) Spongilla
(b) Euspongia
(c) Hyalonema
(d) Cliona
Mesenchyme of sponges consists of skeletal elements and
(a) Pinacoderm
(b) Choanoderm
(c) Gemmules
(d) Free amoeboid cells
Fresh water sponges are also grouped in the
(a) Calcarea
(b) Heterocoela
(c) Demospongia
(d) Trachinellida
Totipotent cells of sponges are
(a) Thesocytes
(b) Archaeocytes
(c) Myocytes
(d) Chromocytes
Sponges are
(a) Diploblastic
(b) Monoblastic
(c) Triploblastic
(d) Tetrablastic
Related: basic concepts of chemical bonding test
Which of the following is boring sponge
(a) Cliona
(b) Chalina
(c) Euplectella
(d) Hyalonema
Most important character of all sponges:
(a) Coelenteron
(b) Herbivorous nutrition
(c) Choanocytes
(d) Only sexual reproduction
Sycon belongs to a group of animals which are best described as
(a) Unicellular or acellular
(b) Multicellular without any tissue organization
(c) Multicellular with a gastrovascular
(d) Multicellular having tissue organisation, but no body cavity
Which is given as a gift in Japan?
(a) Hyalonema
(b) Euplectella
(c) Tethya
(d) Leucosolenia
Bath sponges is generally found in
(a) Red Sea
(b) Gulf Mexico
(c) Pacific Islands
(d) Mediterranean sea
Related: morphology of flowering plants online test
Carmine particle put above osculum of a sponge would be
(a) Left there
(b) Ingested and digested
(c) Thrown away
(d) Ingested and thrown away by ostia
What is found in a sponge
(a) Choanocytes
(b) Nematocysts
(c) Amoebocytes
(d) Interstitial cells
Which of the following cells in sponges catch food?
(a) Pinacocytes
(b) Choanocytes
(c) Thesocytes
(d) Archaeocytes
Sponges are porifers because their bodies have
(a) Spicules in skeleton
(b) Several pores
(c) Canal system
(d) All the above
Related: biology Ecosystem test
The simplest type of canal system in Porifera
(a) Ascon type
(b) Leucon type
(c) Sycon type
(d) Radial type
What will happen if a sponge is cut into maximum possible pieces
(a) These will die
(b) These will differentiate
(c) Every piece will form a sponge
(d) Some pieces will develop in organs
In sponges there is:
(a) Radial symmetry
(b) A true coelom
(c) A single exit and a number of mouthlets
(d) A single mouthlet and a number of exists
Type of spongocoel found in Leucosolenia is
(a) Ascon
(b) Leucon
(c) Sycon
(d) Rhagon
The most distinctive character of sponge is
(a) Presence of choanocytes
(b) Unicellular
(c) Marine
(d) Asexual reproduction
Related: logarithms problems
Nutrition is sponges is
(a) Extracellular
(b) Intracellular
(c) First extracellular and then intracellular
(d) First intracellular and then extracellular
What is left after a bath sponge disintegrates and dries?
(a) Silk fibres
(b) Muscle fibres
(c) Spongin fibres
(d) Nerve fibres
Glass Rope sponge is
(a) Hyalonema
(b) Euplectella
(c) Scypha
(d) Spongilla
Spongin fibres are secreted by
(a) Choanocytes
(b) Pinacocytes
(c) Amoebocytes
(d) Spongioblasts
A Chamber common to all types of canal system of sponges is called
(a) Paragastric cavity
(b) Radial chamber
(c) Excurrent canal
(d) Incurrent canal
Related:Â Anaerobic respiratory mcq questions
Sponges structure corresponding to mouth of other animals is
(a) Incurrent canal
(b) Ostium
(c) Osculum
(d) Excurrent canal
Characteristics of sponges is
(a) Diploblastic
(b) Aquatics
(c) Link between living and nonliving
(d) Body has pores
Muscles in sponges are:
(a) Striated
(b) Smooth
(c) Both striated and smooth
(d) None of these
“Venus flower basket” is the name of the dried skeleton of
(a) Euspongia
(b) Euplectella
(c) Spongilla
(d) Leucosolenia
Internal asexual propagule of some fresh water sponges is
(a) Gemmule
(b) Planula
(c) Stereoblastula
(d) Amphiblastula
Related: work energy and power mcqs
Sponges have evolved from
(a) Ciliates
(b) Flagellates
(c) Protozoans
(d) Choanoflagellates
Sponges capture food particles with the help up
(a) Choanocytes
(b) Pinacocytes
(c) Thesocytes
(d) Trophocytes
The middle layer in body wall of porifera is
(a) Mesoderm
(b) Mesenchyme
(c) Mesogloea
(d) Mesentery
Members of phylum porifera are
(a) Exclusively marine animals
(b) Exclusively fresh water animal
(c) Mostly fresh water animals but few are marine animals
(d) Mostly marine animals but few are fresh water animals
Related: chemical bonding and molecular structure worksheet
Which is universal for sponges?
(a) Marine
(b) Calcareous spicules
(c) Radial symmetry
(d) High regenerative power
Reproductive cells of sponges are formed from
(a) Pinacocytes
(b) Choanocytes
(c) Archaeocytes
(d) Trophocytes
Sponges are
(a) Sessile
(b) Planktonic
(c) Free-swimming
(d) Pelagic
In sponges, canal system develops due to
(a) Gastrovascular system
(b) Folding of inner walls
(c) Porous walls
(d) Reproduction
Related: female reproductive system test questions and answers
Classification of Phylum Porifera is based on
(a) Nutrition
(b) Spicules
(c) Locomotion
(d) Reproduction
Digestion of food occurs in sponges Leucosolenia in
(a) Spongocoel
(b) Choanocytes followed by amoebocytes
(c) Amoebocytes
(d) Choanocytes
Incurrent canals are lined by
(a) Choanocytes
(b) Pinacocytes
(c) Porocytes
(d) None of the above
