The correct answer is: Natural selection acted on the variation that was present in the population.
The scientist that disproved the idea that life comes from non-life was <em>Luis Pasteur</em><em />
The scientist who tried to prove that life comes from non-life was John Needham. To do this, he took an open flask and put broth in it, heated it up, then sealed it, finding signs of life in it days later. He used that experiment to try and prove that life could come from non-living things.
Luis Pasteur disproved this theory by placing broth in a swan-necked flask, so that it was open to air and bacteria, and heating it up to sterilize it. After a few days the broth did not have any signs of life in it, but if the neck was cut off, then within a few days the broth began to mold and bacteria started growing. This proved that spontaneous generation does not occur, otherwise the broth in the swan-necked flask would have molded over as well.
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An unprotected traveler's blood would boil at normal body temperatures because the pressure is so low. Temperatures in the mesophere decreases with altitude, because there are few gas molecules in the mesophere to absorb the sun's radiation, the heat source is the stratosphere below. The air in the mesophere has extremely low density and as a result the air pressure is very low.
Answer:
im pretty sure its form a hypothesis
