 
 <prompt> How these changes dey affect di organism? Based on di last question, write one context wey get di answer. E fit be 1 - 20 sentences. Context: <response>: ```Instead, e formulate di spearhead model of evolution, wey be version of genetic pluralism. According to dis model, living organisms dem get goals, and dem dey act based on dis goals, each one dey guided by central control. For di highest level, na di brain of humans dey control am, but controls still dey exist for organisms wey dey less complex like amoeba. Dis control organ dey play special role for evolution—e be di "spearhead of evolution". Di goals dey bring purpose enter di world. Mutations for di genes wey dey determine di structure of di control fit cause big changes for behaviour, preferences and goals, without affecting di organism's phenotype. Popper dey suggest say dis kind of behavioural changes no dey too dangerous for di organism compared to big changes for di phenotype.``` 