How would you distinguish a scientific theory from a scientific law

Structures in cells that carry out specific functions.

Which of the following is a macronutrient? carbohydrates lipids amino acids all of the above

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?