title: What does the UITableView method "deleteRowsAtIndexPaths: withRowAnimation:" do?
body: <p>********Update to Question**********</p>
  
  <p>If the tableview does not affect the model: 
  Are the index path of onscreen cells changed to reflect their actual position OR are the indexes of deleted cells invisible until reloadData is called?</p>
  
  <p>*******Original Question**********</p>
  
  <p>I know it marks the cells for deletion and animates the deletion, but what does it do to the model?</p>
  
  <p>Does it affect the model at all (I can't imagine it does)?</p>
  
  <p>Are the cells "still there" but invisible?</p>
  
  <p>When the user begins to scroll does it skip delegate calls for the deleted indexes?</p>
  
  <p>Does it expect you to update the model?</p>
  
  <p>Seems vague from what I have read so far...</p>