In instrumental conditioning, what is the function of a positive reinforcer? A to induce fear
B.
to neither strengthen nor weaken a behavior
to weaken a behavior
OD
to strengthen a behavior

It is D : To Strengthen a behavior

Explanation:

This is correct because I took the test

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.