TV Venkateswaran

In the 1880s, Charles Darwin turned his curiosity to plants. Roots anchor a plant in the soil, absorb nutrients, and respond to environmental stimuli; they are the foundation of any plant. When a seed germinates, the roots always grow down, and the sprout grows up. He wondered: Why do the roots of many plants not grow straight away from the seed but instead take a slight turn to one side? …read more on NOPR