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The scientific name of commercial bath sponge is

A. Cliona

B. Hyalonema

C. Chalina

D. Euspongia

Correct Answer :

D. Euspongia


Related Questions

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Cells that aid in locomotion of a sponge are

A. porocytes

B. myocytes

C. choanocytes

D. none of these

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Animals of phylum porifera are characterised by

A. diploblastic organisation

B. coelenteron

C. canal system

D. coelom

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Which is not a larva of sponge?

A. Planula

B. Stomogastrula

C. Amphiblastula

D. Terogastrula

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The most common composition of skeleton in sponges is :

A. Cartilage

B. Mesenchyma

C. Spicules and spongin fibres

D. Myonemes

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Canal system is characteristic of

A. corals

B. sponges

C. sea urchin

D. sea horse

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The skeleton in sponges is composed of

A. gemmules

B. spicules

C. spongin fibre

D. trychocysts

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Ostia are meant to

A. admit water current

B. pass out water current

C. ingest food

D. excrete waste products

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The commercial bath sponge belongs to

A. porifera

B. gatropoda

C. coelenterata

D. ctenophora

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The only fresh water species of sponges is

A. Scypha

B. Euspcmgia

C. Spongilla

D. None of these

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Sponges capture their food by

A. pinacocytes

B. thesocytes

C. choamocytes

D. scleroblasts

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Difference between a sponge and a metazoan is that sponge do not contain

A. cells

B. cell organisation

C. cell division

D. division of labour

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The commercial bath sponge is made up of

A. siliceous spicules

B. spongin fibres

C. collagen fibres

D. elastic fibres

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If a carmine particle is put on the os~ culum of a living sponge, it will

A. adhere

B. rotate

C. be ingested

D. none of these

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Which of the following statements is true of sponges ?

A. One mouth and innumerable exits

B. Mouth serves for both, ingestion and egestion

C. Innumerable mouths and one exit

D. The body encloses a single cavity the coeienteron

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Larva of sponge is known as

A. planula larva

B. amphiblastula larva

C. trochophore larva

D. glochidium larva

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Path of water in a sponge is

A. pinacocyte � choanocyte � osculum

B. osculum > spongocoel � ostia

C. ostia > spongocoel � osculum

D. osculum � ostia > spongocoel

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Asexual reproduction in sponges is by forming buds and

A. gemmules

B. spicules

C. spongin fibres

D. choanocytes

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Choanocytes in sponges are present

A. on the external body surface

B. line the gastric cavity

C. located between the outer and inner layers

D. in the mesodermal layer

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Which of the following is given as a gift in Japan?

A. Hyalonema

B. Tethya

C. Euplectalla

D. Pheronetna

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A chamber which is common in different types of canal system:

A. Radial canal

B. Inhalant canal

C. Spongocoel

D. None of these

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The larva of Sycoti is

A. parenchyma

B. alanula

C. redia

D. amphib las tula

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The spongocoel is lined by choanocytes in

A. Leucosolenia

B. Sycon

C. Euspnongia

D. Grautia

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Nervous system in sponges

A. is well developed

B. is in the form of a network

C. is made up of several interconnected ganglia

D. is absent

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A sponge is a

A. coelomata

B. acoelomata

C. metacoelomata

D. pseudocoelomates

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Sponges are not found in

A. cold water

B. sea water

C. sandy shore

D. brackish water

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Sycon belongs to the class

A. calcarea

B. porifera

C. hexactinellida

D. demospongia

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Sponges with a skeleton of calcium carbonate belongs to the class

A. calcarea

B. demospongia

C. anthozoa

D. hexactinellida

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The phylum porifera contains most primitive of multicellular animals called

A. corals

B. sea pen

C. comb jellies

D. sponges

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Sponges capture their food by

A. choanocytes

B. porocytes

C. amoebocytes

D. pinacocytes

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What is Euplectella commonly called ?

A. Glass rope sponge

B. Venus flower basket

C. Boring sponge

D. Commercial bath sponge