Well we know Imaginaries are supposed to be living, breathing beings. Therefore, they have to have blood, and that means having veins, if you really want to get scientific about it.
And yeah, someone mentions the ticks in that one episode, so it proves Bloo has blood.
And how can something NOT have a spine and move around like that? I don't see how that's possible....
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~Ami~
*Let your imagination run wild...*
That's MY Bloo, MINE!!

(Avatar piccy belongs to "sperg" of deviantart, sig piccy to "jameson".)
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