Juvenile hormone in cockroach is secreted by :

1. Corpora cardiaca         

2. Prothoracic gland

3. Corpora allata              
4. Corpora bigemina

Subtopic:  Cockroach: Intro & External Morphology (OLD NCERT) | Cockroach: Head & Mouth Parts (OLD NCERT) | Cockroach: Structure of Thorax (OLD NCERT) | Cockroach: Abdomen (OLD NCERT) |
 54%
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