Answer:
The area will be populated with higher number of black and white colored guinea pigs, with no population of grey.
Explanation:
This is because the new habitat favours survival of black and white guinea pigs over gray. The black and white rocks habitat camouflage the black and white guinea pigs from the predator (the selective pressure). Therefore the predator selected more gray guinea pigs each time ahead of the white and black,thus the allele frequency for black and white guinea pigs changed, giving directional selection towards white and black phenotype over gray.
Consequently, the black and white guinea pigs have higher selective advantage above the gray. if the environmental and selective pressures continues, the white and black will have higher reproductive success,and their phenotype will evolved in the entire population while the less selective advantaged gray color guinea pig phenotype disappears.
