annelida are more advanced than flatworms discuss
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Phylum Annelida is more advanced than Platyhelminthes
Phylum Annelida is more advanced than PlatyhelminthesPresence of coelom. A circulatory system to distribute blood and oxygen. A developed gut that runs from one end of the body to the other.
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- ᴀɴɴᴇʟɪᴅs ᴀʀᴇ ᴅɪsᴛɪɴɢᴜɪsʜᴇᴅ ʙʏ ʀɪɴɢ-ʟɪᴋᴇ ᴇxᴛᴇʀɴᴀʟ ʙᴀɴᴅs ᴀʟᴏɴɢ ᴛʜᴇɪʀ ᴍᴜsᴄᴜʟᴀʀ ʙᴏᴅʏ ᴡᴀʟʟ ᴛʜᴀᴛ ᴄᴏɪɴᴄɪᴅᴇ ᴡɪᴛʜ ɪɴᴛᴇʀɴᴀʟ ᴘᴀʀᴛɪᴛɪᴏɴs ᴅɪᴠɪᴅɪɴɢ ᴛʜᴇɪʀ ʙᴏᴅɪᴇs ɪɴᴛᴏ sᴇɢᴍᴇɴᴛs. ᴡɪᴛʜ ᴀ ᴄɪʀᴄᴜʟᴀᴛᴏʀʏ sʏsᴛᴇᴍ ᴛᴏ ᴅɪsᴛʀɪʙᴜᴛᴇ ʙʟᴏᴏᴅ ᴀɴᴅ ᴏxʏɢᴇɴ ᴀɴᴅ ᴀ ᴏɴᴇ-ᴡᴀʏ ɢᴜᴛ, ᴛʜᴇɪʀ ʙᴏᴅɪᴇs ᴀʀᴇ ᴇɴᴏʀᴍᴏᴜsʟʏ ᴍᴏʀᴇ ᴄᴏᴍᴘʟᴇx ᴛʜᴀɴ ᴍᴏᴅᴇʀɴ ғʟᴀᴛᴡᴏʀᴍs.
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