61.Which one of the following pairs is mismatched? A. Bombyx mori- Silk B. Pila globosa- Pearl C. Apis indica- Honey D. Laccifer lacca- Lac
Option B. Apis indica is a subspecies of the honey bee and it produces honey. Kenia lacca is a species of scale insect of the family Kerriidae. They are raised for the production of lac ( a substance used for dyeing wool and silk). Bombyx mori is silkworm and is reared for the production of silk. Pila globosa is an amphibious apple snail. Its flesh is commonly used as prawn feed in aquaculture. It is also used a poultry feed and as human feed in some places. Pearls are produced by molluscan bivalves or clams.