Of the three mechanisms leading to autopolyploidy, which is the most rare event?

What is the difference between how ionic and covalent bonds form

Casts and mold are a type of preservation where the original material decays, leaving a mold in surrounding rock that can be filled with another sediment a. true b. false

Based on the number of offspring they produce at one time organisms are classified into two categories many offspring at once and a few at a time sort the carry sticks based on the category they describe