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Standard IX
Biology
Nutrition in Humans
Question

The dentition of higher organisms corresponds to which of the following structure of cockroaches?
  1. Labium
  2. Mandibles
  3. Labrum
  4. Hypopahrynx

A
Hypopahrynx
B
Labium
C
Labrum
D
Mandibles
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Solution
Verified by Toppr

In cockroach the labrum is upper lip, and moves longitudinally. The mandibles (corresponding to jaws) are a highly sclerotized pair of structures that move at right angles to the body, used for biting, chewing, and severing food. The labium is lower lip. Hypopharynx is the tongue.

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