Q: Fact 1: Biodiversity generally increases from the poles to the equator. Fact 2: Biodiversity contributes to ecosystem complexity. Given the two facts above, where is ecosystem complexitiy generally least?

Options: A. humans disturb it. B. frontal zones. C. in lakes. D. at the ocean. E. our planet. F. at the poles. G. mouth of rivers. H. at the equator.
The answer is:
F.