Select Only One Row Or More Using SubTotals

I am using subtotals to create groups. Sometimes there is only one row but more often there are two or more rows. I am trying to run a macro that needs to select either one row (copy into memory) of which there will always be a blank row below that, given the space where the subtotal does its calculations. I have tried a couple things i.e.

ActiveCell.Select
Selection.End (x1Down) . Select
Selection.End (x1Down) . Select

or

Range(Selection, Selection.End(x1Down).Select
ActiveCell.Rows ("1:8").EntireRow.Select

Is there a way to have the macro start and if it sees only one row followed by a space (blank row of subtotal that creates the needed break, that it will copy that one row into memory or if there are two or more rows that it will copy all those rows up to the next break and put that into memory? There can be anywhere from 1 row to several hundred rows.