Any girls out there wanna help a black 5'10 boy out tonight?

This drawing shows a human body system. what is the primary function of this body system?

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt

In the following table, all the columns for the element calcium are filled out correctly. element electron structure of atom electron structure of ion net ionic charge calcium 1s22s22p63s23p64s2 1s32s22p63s23p64s1 +1 true false