How will the shape of the worm change?

The shape of a worm can change in response to various environmental factors or internal stimuli. For instance, when a worm moves, its body elongates and contracts through the expansion and contraction of its muscles, allowing it to navigate through soil or other substrates. Additionally, when threatened or in a confined space, a worm may curl or flatten its body for protection or to fit through tight areas. These shape changes are crucial for locomotion, survival, and adaptability in their habitats.