1.) the status of biological evolution as a scientific theory is somehow different or set apart from that of other scientific theories such as gravity or relativity.
I think you might want to change this - technically biological evolution is different from theories such as gravity or relativity since it's a different theory. I get your meaning though. I suggest "biological evolution is not a valid scientific theory." or something like that, just to make the meaning clear.Nobody's saying that it's not a valid theory. The main assertion is that its being a theory implies a lesser likelihood of it being false. I'd make it something like "the idea that biological evolution's status as a scientific theory implies that it is any less likely to be true than other scientific ideas".