Which meter instruments can be used for measuring weight

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 substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water

Which could be a pathway of food through an ecosystem