Home
Current Affairs January 2024

What is the correct answer?

4

Which one of the following is a flagellated larva of Leucosolenia ?

A. Planula

B. Parenchymula

C. Maggot

D. Kedia

Correct Answer :

B. Parenchymula


Related Questions

What is the correct answer?

4

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

A. Hyalonema

B. Tethya

C. Euplectalla

D. Pheronetna

What is the correct answer?

4

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

What is the correct answer?

4

Food is stored in-of sponges.

A. trophocytes

B. thesocytes

C. desmocytes

D. archeocytes

What is the correct answer?

4

The larva of Sycoti is

A. parenchyma

B. alanula

C. redia

D. amphib las tula

What is the correct answer?

4

The phylum porifera contains most primitive of multicellular animals called

A. corals

B. sea pen

C. comb jellies

D. sponges

What is the correct answer?

4

Lencosolenia is

A. free living, solitary, marine

B. free living, fresh water, solitary

C. free living, colonial, marine

D. Solitary, colonial, fresh water

What is the correct answer?

4

The spongocoel is lined by choanocytes in

A. Leucosolenia

B. Sycon

C. Euspnongia

D. Grautia

What is the correct answer?

4

Exogenous budding, a type of asexual reproduction in sponges is known as

A. gemmulation

B. gemmation

C. regeneration

D. amphimixis

What is the correct answer?

4

Path of water in a sponge is

A. pinacocyte � choanocyte � osculum

B. osculum > spongocoel � ostia

C. ostia > spongocoel � osculum

D. osculum � ostia > spongocoel

What is the correct answer?

4

The gametes in sponges develop from

A. amoebocytes

B. archeocytes

C. choanocytes

D. myocytes

What is the correct answer?

4

Phylogenetically, the sponges have evolved from

A. protozoans

B. flagellates

C. choano flagellate

D. ciliates

What is the correct answer?

4

The commercial bath sponge belongs to

A. porifera

B. gatropoda

C. coelenterata

D. ctenophora

What is the correct answer?

4

Animals of phylum porifera are characterised by

A. diploblastic organisation

B. coelenteron

C. canal system

D. coelom

What is the correct answer?

4

A sponge is a

A. coelomata

B. acoelomata

C. metacoelomata

D. pseudocoelomates

What is the correct answer?

4

The canal system in sponges does not serve the function of

A. nutrition

B. respiration

C. excretion

D. sexual reproduction

What is the correct answer?

4

Sponges capture their food by

A. pinacocytes

B. thesocytes

C. choamocytes

D. scleroblasts

What is the correct answer?

4

Ostia are meant to

A. admit water current

B. pass out water current

C. ingest food

D. excrete waste products

What is the correct answer?

4

Larva of sponge is known as

A. planula larva

B. amphiblastula larva

C. trochophore larva

D. glochidium larva

What is the correct answer?

4

The central cavity of the sponge is also called

A. ostea

B. gastral cavity

C. gut

D. gullet

What is the correct answer?

4

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

What is the correct answer?

4

Collared, flagellated cells covering large parts of the inner chambers of sponges and helping to keep water circulating are

A. choanocytes

B. porocytes

C. pinacocytes

D. amoebocytes

What is the correct answer?

4

The skeleton in sponges is composed of

A. gemmules

B. spicules

C. spongin fibre

D. trychocysts

What is the correct answer?

4

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

What is the correct answer?

4

The pathway of entring and coming out of water of sponges is

A. water vascular system

B. canal system

C. feeding current

D. circulating current

What is the correct answer?

4

The only fresh water species of sponges is

A. Scypha

B. Euspcmgia

C. Spongilla

D. None of these

What is the correct answer?

4

Which is not a larva of sponge?

A. Planula

B. Stomogastrula

C. Amphiblastula

D. Terogastrula

What is the correct answer?

4

Cells that aid in locomotion of a sponge are

A. porocytes

B. myocytes

C. choanocytes

D. none of these

What is the correct answer?

4

Sponges are not found in

A. cold water

B. sea water

C. sandy shore

D. brackish water

What is the correct answer?

4

Sponges with a skeleton of calcium carbonate belongs to the class

A. calcarea

B. demospongia

C. anthozoa

D. hexactinellida

What is the correct answer?

4

The skeleton of sponges is mostly composed of

A. choanocytes

B. scleroblasts

C. pinacocytes

D. amoebocytes