A male bird has a genetic mutation that influences its mating behavior. This male bird performs a ritualistic dance that is very
successful at attracting females of the species. The male bird passes this genetic mutation onto its offspring. Several generations later, almost all of the birds in the species exhibit this mating behavior
Mutations are a fundamental part of the process of evolution by natural selection. These are a random genetic modifications that occur on every organism - some are beneficial and others could be harmful or disadvantageous. Therefore, natural selection decides which mutations will stay on a population and which ones will be eliminated.
In this scenario, this mutation enables the male bird to carry out better mating rituals, therefore it would be considered beneficial as it helps the species to reproduce and survive. So, it will be passed on from generation to generation, making other individuals fit for survival.
The circulation of water in the ocean due to
differences in density between the different layers of water is most
likely responsible for "<span>B deep water ocean currents" The moon is responsible for the tides, and under water volcanoes will erupt regardless of the water density. </span>
I think the correct answer from the choices listed above is the last option. The control group to be used to test the hypothesis would be the swallows with average-length tails. A control group <span>is defined as the </span>group<span> in an experiment or study that does not receive treatment by the researchers.</span>