Pls hlp me with these questions: brainliest, ratting, thx, etc.

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

How to convert a density of 0.791g/cm3 to lb/ft3

Identify one disadvantage to each of the following models of electron configuration: -dot structures -arrow and line diagrams -written electron configurations type in your answer below. (answer) -dot structures do not show the distribution of electrons in orbitals and take up a lot of space. -arrow and line diagrams take up a lot of space and make it difficult to count electrons. -written configurations make it easy to lose count of electrons and do not show the distribution of electrons in orbitals.