Actually I don't believe it is legal to teach ID or creationism in Engish schools and I would be interested in knowing which exam board and which year that question comes from? Both ofsted and ASE (association for science education) have said quite clearly that neither qualify as science, not even bad science hence neither should be taught as such. ASE even goes as far as saying that if the topics arise in subjects over which it has no jurisdiction, such as RE, it should be discussed as purely a religious belief and not as anything with any scientific credibility at all.

This is not a dumbed down question (the exams have not been dumbed down) this is a specific piece of religious indoctrination. Whoever wrote it knew exactly what they were doing and I'm not sure how it got through. Are you sure it came from a biology paper and not an RE one?