Answer to Question 1
The Miller-Urey experiments involved passing an electrical charge (lightning) through a primordial soup of chemicals believed to be similar to those which existed on early Earth. The result was the same simple amino acids found today in all living things on Earth.
Answer to Question 2
Life must be able to react, grow, reproduce, and evolve. However, these rules are not hard and fast; things that are not alive, such as stars, may satisfy several of these requirements. Viruses do most of these things but are not generally considered to be alive either.
Testing the reducing atmosphere hypothesis for the origin of life - the Miller and Urey experiment.
The theoretical design of nature reserves, based on the tenets of island biogeography.
USF Biologist Taegan McMahon conducts experiments on chlorothalonil at a research facility in East H
Aneurysm. Photograph of the aorta, the large blood vessel arising from the heart, with a large bulge
Nature (Waterfall)
Results of Tracing Methods