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Which one of the following pairs is mismatched?
A
Apis indica - honey
B
Kerria lacca - lac
C
Bombyx mori - silk
D
Pila globosa - pearl
Detailed Solution
Pearls are produced by the pearl oyster Pinctada (for example Pinctada vulgaris), a bivalve mollusc, which deposits layers of nacre around a foreign particle.
Pila globosa is the apple snail, a gastropod mollusc; it does not produce pearls.
So the pair Pila globosa - pearl is mismatched.
Apis indica is the Indian honey bee, which produces honey.
Kerria lacca (Laccifer lacca) is the lac insect, which secretes lac.
Bombyx mori is the mulberry silkworm, which produces silk.
These three pairs are correctly matched.
Pila globosa is the apple snail, a gastropod mollusc; it does not produce pearls.
So the pair Pila globosa - pearl is mismatched.
Apis indica is the Indian honey bee, which produces honey.
Kerria lacca (Laccifer lacca) is the lac insect, which secretes lac.
Bombyx mori is the mulberry silkworm, which produces silk.
These three pairs are correctly matched.