What is the effect of failure of succession on the biodiversity of an ecosystem

Many farmers prefer cattle without horns because it is safer for their herds. the allele for no horns (n) is dominant to the allele for the presence of horns (n). a farmer mates a male with horns to a heterozygous female without horns. what is the chance that the offspring will have horns?

The body of water found at number 4 on the map above is the

The sea slug that considered to be a photosyntheesizing animal