In Cockroach the longest podomere is

Coxa

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Trochanter or Femur

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Tibia

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Tarsus

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Solution

The correct option is C Tibia
All the three pans of legs have the same structure and so they are serially homologous.
• In Cockroach 3 pairs of legs are present.
• Each leg is made up of 5 segments
• Coxa articulates with the thoracic segment. it is broad and highly muscular.
• The longest podomere in the leg of Cockroach is Tibia.
So the correct answer is 'Tibia'.

Suggest Corrections

A. Ommatidia	(i) Articules with thorax
B. Trochanter	(ii) For vision
C. Coxa	(iii) Forming exoskeleton
D. Sclerites	(iv) Fused with large and stout femur