Since the mother's type is recessive O, the man's blood type A would be dominant. And because none of the children gained B or O blood types, it is likely the father only has A. This indicates homo-zygous (same) genotype, thus meaning his blood type is AA.
the reason for the dash between homo-zygous is because Brainly tagged it as inappropriate?
Because both introduce substance that harm organisms. All the other ones are wrong because<em> eutrophication</em> is a natural process that involes little to<em> no human interference . </em>
