What are the two specific concerns of species diversity

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?

What would happen if the tubing with the yellow band was placed in a beaker of distilled water?

What is the statement plant growth is affected by the color light