Learning curves are more likely to be applied in situations where most of the costs are

what group of people depend on what yoy are talking i will still you once you tell me what group of people you are talking about : )

i think i know what group you are talking about so the brahmins

i'll just take the points xd

explanation:

allergens: overstimulate the nerve system

neurotics: attack nerve cells

mutagens: damage or otherwise alter dna sequence

generators: cause defects during growth and development  

carcinogens: cause unchecked cell growth

i hope you get the idea according to me these are the effects that happened.