1. The sunflower exhibits apheliotropism as it follows the path of the sun throughout the day.
(向日葵通过一天中跟随太阳的路径展示着太阳性转向现象。)
2. Apheliotropism is an adaptive mechanism that allows plants to maximize exposure to sunlight for efficient photosynthesis.
(太阳性转向是一种适应机制,它使植物能够最大程度地暴露在阳光下,以进行高效的光合作用。)