What kind of fruit do not have definite lines or seams?

Fruits that do not have definite lines or seams typically include those that are smooth and round, such as Apples, bananas, and grapes. These fruits possess a uniform skin texture without noticeable divisions. In contrast, fruits like Oranges and watermelons have distinct lines or segments. Overall, many berries and stone fruits also fall into the category of having a seamless appearance.