Ais a barrier that holds back water from a river. a.) barricade b.) dam c.) desalination plant d.) hydro-cyclone

this is true, assuming that the allele is completely recessive and incomplete dominance is not a factor.

he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?