In the context of plant movements, which of the following statements best describes circumnutation?
1
The movement of plants in response to sunlight, allowing them to grow towards the light source.
2
The slow, random movement of plant tendrils or leaves, often forming circular or zigzag patterns as they grow.
3
The rapid response of plants to external stimuli such as touch, like the closing of a Venus flytrap.
4
The vertical growth of plants regulated by gravity and internal hormones, ensuring upright development.