Can you put a 'e' on QeD here? I did and it was marked wrong. Granted, Anatomy is the thumbs and little fingers which science studies is a weird thing to say, but the grammar seems to let me if I wanted to.
No. You need an -'e' on porghQeD because it's required for a "to be" sentence. You can't have two topics (if everything is a topic, nothing is a topic).
I mean, maybe Klingons do it anyway, but we've never seen anything approaching it.