Centrioles aid with a. digestion b. cell division c. energy production d. movement

The answer you're looking for is B. Cell division. Centrioles are involved in the development of spindle fibers in cell division. I hope that this answer helps you out!

Cell Division, B

got it right on the test btw

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.