Genetic variation or Genetic drift
Charles Darwin; he studied the different beak shapes/sizes of Galapagos finches and found that over time, they changed due to their needs for the food found around them (evolution).
Answer: The binomial naming device is the device used to call species. Each species is given a call that includes parts. The first component is the Genus to which the species belongs, and the second component is the species call.
The nephrons work through a two-step process: the glomerulus filters your blood, and the tubule returns needed substances to your blood and removes wastes. Each nephron has a glomerulus to filter your blood and a tubule that returns needed substances to your blood and pulls out additional wastes.