What are prokaryotes cells and why are they in the same kingdom as eukaryotes cells

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?

Along what geographical feature are most of the oil producing regions located

Which of the following is most likely the result of an organism having lipids in its body a) water cannot be absorbed through the surface of a leaf b)human eats fruits to get a quick source of energy c) a sheep sleeps for more hours in the winter d) a warm river is filled with fish and algae