Phylum Mollusca MCQs with Answers

Phylum Mollusca MCQs

Hello students, our next topic for the MCQ is ‘PHYLUM MOLLUSCA’. The ‘Mollusca’ term is given by the Johanson. This phylum includes soft bodied animals like oysters, snails, octopus and mussels. Phylum Mollusca is the second largest phylum in kingdom animalia. The Mollusca have unsegmented body with muscular foot and visceral hump. The food is useful in locomotion.

The following collection of MCQ will give you more information about this topic.

 

MCQ.1):Which of the following is the characteristic of phylum Mollusca?

a)Unsegmented body

b) No jointed appendages

c) Hard bodied

d) Both a) and b)

 

MCQ.2):In Shell of Mollusca, externally ……………………..Secretes a hard, brittle, calcareous shell and it protects the soft body.

a) Mandible

b) Mantle

c) Maxillae

d) Podia

 

MCQ. 3):The ……………………………….. Part of the Mollusca contains all internal organs.

a) Head

b) Foot

c) Mantle

d) Visceral mass

 

MCQ.4):The single plate bearing molluscan organisms is called as …………………………..

a) Monoplacophora

b) Scaphopoda

c) Amphineura

d) Gastropoda

 

MCQ.5):Which of the following class includes boat foot and Dentalium or tusk shell?

a) Tenticulae

b) Gaster

c) Scaphopoda

d) Gastropoda

 

MCQ.6):The mantle cavity is water filled chamber that houses the …………………

a) Anus

b) Gills

c) Excretory pores

d) All of them

 

MCQ.7):Which of the following is strap like rasping organ used to scrape up food with the help of curved teeth?

a) Visceral mass

b) Radula

c) Foot

d) Motor organ

MCQ.8):The fertilized egg which develops into a swimming form known as……………

a) Hemocoel

b) Tinospora

c) Trochophore larva

d) Veliger larva

 

MCQ.9):The pelycopoda or Lam ellibranchia are also called as …………………

a) Gastropoda

b) Bivalves

c) Cephalopods

d) Trivalves

 

MCQ.10):The following are most common gastropods EXCEPT?

a) Snails

b) Nudibranchs

c) Slugs

d) Sea urchin

 

Answer

1) d) Both a) and b)

2) b) Mantle

3) d) Visceral mass

4) a) Monoplacophora

5) c) Scaphopoda

6) d) All of them

7)b) Radula

8) c) Trochophore larva

9) b) Bivalves

10) d) Sea urchin


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