It might be this one:

https://www.youtube.com/watch?v=-U2aHzuhCOc

Right at the beginning. But sadly, it's cut off. The only thing you hear is "body". "How many holes in the human body?" might have been the question.

It never gets answered and that accords with my memory.

That same girl later asks a pained question about when boys start "producing their sperm". So again, a question about human physiology rather than sex. Speaking of which, she has a nice moustache going. Monobrow is coming along nicely too.

Do you suppose that this was intentionally cut out? I know it was originally broadcast with her asking the full question but perhaps it was later released poorly edited like this. Maybe they didn't want to portray Muslims in a negative (albeit accurate) light. "Can Muslims really be this stupid?". It raises questions.

There was a Muslim guy I worked with who asked, "How can you tell the difference between male and female cats? I know males are a bit bigger but it's hard to tell". The (English) woman who responded noted that there are certain anatomical differences between the sexes.

How on earth could this guy not know this? It boggles the mind. These are powerfully unintelligent people.