Effects of Environmental Factors on Phenotype: examples of physical and social factors

Explanation:

environmental factors that effects the phenotype of individual include radiation drugs and pollution because these factors cause mutation in genes which ultimately effect phenotype along with genotype

social factors are thing that effect someone's lifestyle it include wealth religion buying habits education level which effect phenotype

cramming before a final is bad because it makes a student's stress level higher. students who embrace cramming to get through a final exam week find themselves struggling to perform consistently, once the brain adjusts to prolonged sleep deprivation.

answer: the answer is b