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