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What two fields of study provide the core information that is used to classify organisms?

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?

Math focus 4. calculate a map has index contours at 250 m, 500 m, and 750 m. what is the contour interval?