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Which muscular partition separates the thoracic cavity from the abdominal cavity in a rabbit?
APericardium
BPeritoneum
CPleura
DDiaphragm
Answer & Solution
Correct answer: D. Diaphragm
1. The rabbit body cavity is split into thoracic and abdominal regions.
2. A transverse partition divides them.
3. This partition is the diaphragm, a characteristic mammalian feature.
4. The pericardium is the membrane around the heart, not the partition, so it is the trap.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 13 Structural Organisation of Animals "Coelom", p.200_
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