All of the following groups settled in northern carolina during the early colonial period, except the a. scots-irish. b. english. c. quakers. d. german protestants.

Letter C is correct: Quakers.

During the early colonial period, Northern Carolina was settled chiefly by Scots-Irish, English and German Protestants colonists. Quakers did NOT settle Northern Carolina during the early colonial period, they were one of the first to settle South Carolina.

find out yourself so

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.