Biology 11 Chapter - 9
Diversity Among Animals - 18
1.
The shell in mollsks is secreted by the?
a) Mantle
b) Viscera
c) Head
d) Foot
2.
The shell in octopus is?
a) Internal
b) Lateral
c) Absent
d) External
3.
Which one of the following has an internal shell?
a) Jelly fish
b) Octopus
c) Cuttle fish
d) Snail
4.
The tounge like structure in the mouth of mollusks is called as?
a) Radula
b) Foot
c) Mantle
d) Viscera
5.
In mollusks, the respiration takes place by?
a) Lungs mantle
b) All of these
c) Body surface
d) Gills
6.
The circulatory system of squid is?
a) A and b are correct
b) Closed type
c) Absent
d) Open type
7.
Excretion in mollusks is through?
a) Kidneys
b) Flame cells
c) Metanephridia
d) Protonephridia
8.
The larvae of mollusks is known as?
a) Trochophore larvae
b) Grub
c) Caterpillar
d) Maggots
9.
The radula in mollusks is?
a) Reproductive organ
b) Locomotory organ
c) Circulatory organ
d) Rasping organ
10.
Which one of the following is not a mollusk?
a) Earthworm
b) Snail
c) Slug
d) Squid
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