Answer:
the branch of knowledge concerned with the production, consumption, and transfer of wealth.
B) An allele is one form of a gene.
A trait is usually determined by more than one gene, much less two traits, so A is false.
Alleles are a form of a gene, and any genes have usually two alleles, not the other way around, so C and D are both false.
1) Students learn easier
2) child brain development is increasing
3) tests are improving