Thigmotropism is a growth response in plants that occurs when they come into contact with a solid object. This phenomenon is most commonly seen in climbing plants, such as vines and creepers, which use their tendrils to wrap around supports. When these plants touch a surface, they respond by growing towards it, allowing them to gain stability and access sunlight. This response is crucial for survival, as it helps plants reach higher areas for better light exposure. Thigmotropism is not just limited to climbing plants; it can also be observed in other species, like mimosa plants, which quickly fold their leaves when touched, showcasing their sensitivity to physical stimuli.