The mouth or the buccal cavity of the leech is a __________.

buccal pore

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triradiate aperture

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monoradiate aperture

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jaw bone

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Solution

The correct option is B triradiate aperture
The mouth is a small triradiate aperture situated in the centre of anterior sucker. The triradiate mouth opens into the buccal cavity. Three crescent jaws are embedded in the mucous membrane of buccal cavity. One jaw is mid-dorsal in position and the other two are ventro-lateral in position.

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write a detailed note on buccal cavity(mouth).

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