Assuming that both tables contain the same fields or similar fields, yes this can be done.
Depending how much you understand there are a couple of ways to accomplish this. Your best bet is to create a List Box or Combo Box on your Form so that you can view the data in your tables.
Create an SQL string that pulls from the table that contains the data and put a 'WHERE' clause that tells it to pull a certain record based off of what you select in the ListBox/ComboBox.
Execute the SQL string using - Docmd.RunSQL (string name)
Create a Delete Query or string that uses a 'WHERE' clause similar to the one above, which is based off of the ListBox/ComboBox and execute it as well after you append the data to the new table.