What do earthquakes, tsunami, volcanoes an mid- ocean ridge have in common

Galaxy whose shape seems different follow no set pattern are classified as

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?

Name the glands associated with human digestive system