KCL don't require Biology for Psychology. They say "A-level (or equivalent) grade A in one of Biology, Chemistry, Mathematics, Physics or Psychology." (
source) They do, however, say "Preferred subjects: Biology and Mathematics".
However, for Neuroscience and Psychology they say "A-level (or equivalent) grade A in at least two of Biology, Chemistry, Computer Science, Mathematics, Physics or Psychology." (
source) So that would be out.
Edinburgh say that for Psychology they want "A Levels: one from Biology or Human Biology, Chemistry, Computer Science or equivalent, Geography, Geology, Mathematics, Physics, or Psychology at B" (
source)
So the only one of these that
requires Biology A lev is Neuroscience and Psychology at KCL.