In Earthworm, the first effective organ for food digestion is

Pharynx

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Buccal cavity

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Mouth

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Stomach

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Solution

The correct option is A Pharynx
A terminal mouth opens into the buccal cavity which leads into the muscular pharynx. A small narrow tube, oesophagus, continues into a muscular gizzard. It helps in grinding the soil particles and decaying dead leaves. The stomach extends from 9 - 14 segments. The food of the earthworm is decaying leaves and organic matter mixed with soil.Therefore the first organ for food digestion in earthworm is pharynx.
So the correct answer is 'Pharynx'.

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