Many people I know in the ID community are strongly interested in rethinking mutation, understanding it as a designed or regulated process.
Some discriminators don’t get us very far in deciding which is the better explanation between blind evolution and intelligent design.
Plants mine energy from a primary source (sun) and transform that energy into a secondary source (sugar).
The “hierarchy” that Dawkins is referring to in the video is the tree of life that evolutionary biologists can generate.
When sunlight is adequate, leaves are happy. On some days, though, there can be too much of a good thing.