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प्रश्न
An earthworm (annelida) and a beetle (arthropoda), both have segmented bodies but the beetle has a hard external skeleton. How does the beetle’s external skeleton help it survive?
अति संक्षिप्त उत्तर
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उत्तर
The hard external skeleton protects the beetle from predators, reduces water loss, and provides support for powerful muscles, helping it survive in dry and exposed land habitats.
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