No. An Iguana is in Phylum Cordata and a scorpion is in Phylum Arthropoda. It is virtually impossible to mate between Phyla.
There would be nothing to stop her going through the motions of mating as she still has the relevant 'entrance' on her body, it is just she would most likely not choose to mate as the desire would not be there hormonally (ovaries etc have gone). It is also very painful for a female cat to mate as the male has barbs on his penis, which cause a great deal of pain to the female when he goes to withdraw. It is unlikely he will show much interest in attempting to mate with her anyway because she won't come into season any more.
I wouldn't worry about her vanishing for 8 hours when she does go out either. Most cats will do this.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.