Re: Bleeding orange and green...or what?
Oooh, that's hard. I can't actually remember if it was ever established. My guess would be red, though. As Cardassians can apparently breed without complex medical assistance with Bajorans, humans and Kazon, I imagine it's iron based.
The seeds of the ORDERS OF DISCORDIA were planted by Greyface into his early disciples. They form the skeleton of the Aneristic Movement, which over-emphasizes the Principle of Order and is antagonistic to the necessary compliment.