How do scientists perform experiments and gather data in a controlled fashion?

56.16 gregor mendel was the first scientist to use statistics to analyze scientific data. before mendel's experiments, scientists believed that organisms acquired traits from their environment and passed them on to their offspring. after mendel's discoveries were accepted, scientists realized that traits passed to offspring were the result of genes being passed from parents to offspring. this is an example of pls

All of the following are part of the biosphere except

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation: