Please hurry i need it fastlyy

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins

According to the tide table below what time of day will the highest tide occur? (2 pt) the highest tide will occur at

There is one girl i like and i don't know how to tell her that, i have a feeling she knows but if she doesn't i don't want to make a fool out of myself how is one way to boost my confidence on asking her out