If the head of a cockroach is removed,it may live for a few days because:
- AThe supra-oesophageal ganglion of the cockroach is located in the ventral part of the abdomen.
- BThe cockroach does not have a nervous system.
- CThe head holds a small portion of the nervous system,while the rest is situated along the ventral part of its body.
- DThe head contains $1/3$ of the nervous system,while the rest is located on the dorsal part of its body.
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