Which is a true statement about air quality? Good air quality is shown by high levels of smog.
Bacteria is a major cause of poor air quality.
Water treatment plants measure the air quality.
The EPA measures air pollution levels daily.

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?