Someone pls help me With this I will make you as brain

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

Compare and contrast physical changes with chemical changes.

One way that radioactive waste is treated is by burying it in repositories. the repositories are found only in states with very low populations. true or false? a. trueb. false(also i meant to put high school but it put down middle school instead)