Arsenic (As) can form two different cations and one anion. Predict the short form electron configurations for the element and all three ions. (four configurations total)

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

Why does a plastic bottle that is sealed at a high altitude change it’s shape when taken to lower altitude

Answer asap : ( a. how does mucus prevent the entry of pathogens? b. describe two ways white blood cells protect us from pathogens.