So far I have
Kreb's, life, cell, cardiac, nitrogen, carbon, ornithine, calvin, nutrient and recycling. (add cycle to the end of these) are there any others I have missed out.

No one have any ideas?
At least tell me if you think I got them all

Is there a certain group you need to list because I noticed
You have some listed from different groups, but not all in each group.
Or do you need to list ALL in every group?

Every cycle covered by the english A-level syllabus to be specific are the groups I would like listed other than the ones I have but any info would be helpful thanks

Water cycle
I bet there are others.

I don't know if this is too late, but I'd also include menstrual cycle and cyclic photophosphorylation

I don't know if this is too late, but I'd also include menstrual cycle and cyclic photophosphorylation
LMAO! You got that first part bear? ;)

Yeah. That's funny. I guess you could list testosterone cycles, too, all kinds of daily, monthly, or seasonal cycles in plants and animals. Breeding cycles, leaf loss, flowering... the possibilities are endless. Somebody on the web claims men have monthly cycles. Is that true? I know they have daily and hourly cycles.

I never understood the point of this question anyway.
Asking

Sulphur cycle