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Silk gland is the second largest organ in the silkworm larva next to
EXPLANATION
Silk Gland Anatomy, Histology, & Silk Protein
- Organ Size and Proportions in Silkworm Larvae:
- In a mature 5th instar silkworm larva, the digestive system (alimentary canal, particularly the long cylindrical midgut) is the largest organ, occupying the greater part of the haemocoel to support voracious leaf consumption.
- The paired labial silk glands form the second largest organ, proliferating rapidly in the late 5th instar to account for approximately $25 - 40\%$ of total larval body weight prior to spinning.
- Correct Option: Option 2 (Digestive system).
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