Nature refers to while nurture refers to a. environment . . heredity b. heredity . . environment c. environment . . environment d. heredity . . heredity

nature  refers to  heredity ,  while nurture  refers to  environment. (  answer B)

Explanation

 Nature ;  refers to  human trait that one get  biologically through their parent  and  cannot  be altered  in any way.

Nurture:  is taken  as  influence  of external  factors after  conception . that  is  care    given to the child  by parents.

b

Explanation:

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.

not sure if this what   you'r looking for would be percent composition