(D)an atom can join with other kinds of atoms.
Basically he explained what a molecule is.
The recombinant offsprings are normally the offsprings containing a combination of the parents allele, result in a genotype that differs from both parents genotype. The phenotype May be different as well although it is likely that the phenotype could be the same as the parents, as seen in the case of heterozygous dominant having the same phenotype as homozygous dominant.
I know for a fact c is one of the correct answers and I also think b is the other correct one
C) As the trait will then pass to others without it and through natural selection will become abundant
N= -m - a i think I did that right not sure lol