EVERYDAY SCIENCE

SCIENCE

BOTANY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The various organs of mouthparts used for bitting sucking chewing etc of insects though differ externally and in functions are built on the same basic plan and it is termed.
A
Analogy
B
Homology
C
Parallel evolution
D
Isolation
Explanation: 

Detailed explanation-1: -Biting and Chewing: The labrum is median, somewhat rectangular flap-like. The mandibles are paired and bear toothed edges at their inner surfaces; they work transversely by two sets of muscles to masticate the food. The first maxillae are paired and lie one on either side of the head capsule behind the mandibles.

Detailed explanation-2: -Sucking is a mode of nutrition in which insects pierce food items to suck its internal fluid. Siphoning is a mode of nutrition in which animals suck food from the substratum using siphon as a long hollow tube. Piercing or scraping is a mode of nutrition in which insects scrape the food with their jaws.

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