What are the three main classes of elements? provide two physical properties for each class of elements

1) these are barrel shaped microtubules in most animal cells, that organize the spindles during cell division

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

What’s the theoretical yield of solid lead