Which of the following is NOT a principle of natural selection.

Efficiency is the percent of work put into a machine by the user (input work) that becomes work done by the machine (output work)

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 do nitrifying bacteria convert