Explain digestive system in earthworm.
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ᴛʜᴇ ᴅɪɢᴇsᴛɪᴠᴇ sʏsᴛᴇᴍ ᴏғ ᴛʜᴇ ᴇᴀʀᴛʜᴡᴏʀᴍ ᴄᴏᴍᴘʀɪsᴇs ᴀʟɪᴍᴇɴᴛᴀʀʏ ᴄᴀɴᴀʟ ᴀɴᴅ ɢʟᴀɴᴅs ᴀʟᴏɴɢ ᴡɪᴛʜ ᴘʜʏsɪᴏʟᴏɢʏ ᴏғ ᴅɪɢᴇsᴛɪᴏɴ. ᴍᴏᴜᴛʜ: ᴛʜᴇ ᴍᴏᴜᴛʜ ᴏғ ᴀɴ ᴇᴀʀᴛʜᴡᴏʀᴍ ɪs ᴀ ᴄʀᴇsᴄᴇɴᴛɪᴄ ᴀᴘᴇʀᴛᴜʀᴇ sɪᴛᴜᴀᴛᴇᴅ ɪɴ ᴛʜᴇ 1sᴛ sᴇɢᴍᴇɴᴛ ʙᴇʟᴏᴡ ᴛʜᴇ ᴘʀᴏsᴛᴏᴍɪᴜᴍ. ᴛʜᴇ ᴍᴏᴜᴛʜ ʟᴇᴀᴅs ɪɴᴛᴏ ᴀ ʙᴜᴄᴄᴀʟ ᴄᴀᴠɪᴛʏ. ɪɴɢᴇsᴛɪᴏɴ ᴏғ ғᴏᴏᴅ ᴛᴀᴋᴇs ᴘʟᴀᴄᴇ ᴛʜʀᴏᴜɢʜ ᴛʜᴇ ᴍᴏᴜᴛʜ.
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The digestive system consists of the pharynx, the esophagus, the crop, the intestine and the gizzard. ... The gizzard uses stones that the earthworm eats to grind the food completely. The food moves into the intestines as gland cells in the intestine release fluids to aid in the digestive process.
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