[[Reaction isn’t anticipation.]]
It IS when the CODE is laready present to handle these changes JS- ESPECIALLY when many systems and subsystems all have instrucitons already present before hand to deal with changes that will affect the whole system- this isn’t simple ‘reaction’- but rather prepared for, designed for, anticipated instrucitons
Well yes, cells adapt to a range of conditions, but changes in the ability to metabolize new food sources, such as nylon, requires mutation.