Why is it important to include the <tr> tag in table structures in HTML?

The <tr> tag in HTML is essential for defining rows within a table structure. Without the <tr> tag, the table would not be properly organized into rows, making it difficult for browsers to display the data correctly. Including the <tr> tag ensures that each row of data is clearly defined and separated within the table, allowing for easier styling and manipulation of the table layout. ```html <table> <tr> <td>Row 1, Cell 1</td> <td>Row 1, Cell 2</td> </tr> <tr> <td>Row 2, Cell 1</td> <td>Row 2, Cell 2</td> </tr> </table> ```