Is cake batter a pure substance or mixture

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

How do dying stars contribute to the formation of planets

Which change to the system wood cause the freely-moving piston to lower?