Which of the following is a primary function of roots in plants?

Roots play a crucial role in a plant's overall health and growth, primarily responsible for the absorption of water and nutrients from the soil. They anchor the plant in place, providing stability, while also facilitating the uptake of essential minerals and moisture from the ground, which are vital for photosynthesis and overall metabolic processes.

The process of water and nutrient absorption happens through tiny root hairs that increase the surface area for interaction with the soil, allowing the plant to efficiently gather what it needs to thrive. This absorption is vital during all stages of growth and sustains the plant's life functions, making it a fundamental aspect of plant physiology.

In contrast, photosynthesis primarily occurs in the leaves, where sunlight is harnessed to convert carbon dioxide and water into sugars. Flower production is a reproductive function that occurs after the plant has established itself and is often dependent on external factors like pollination and season. Seed dispersal is a process through which plants ensure the propagation of their species and is not directly related to root function. Therefore, the role of roots in water and nutrient absorption stands out as their primary and most critical function.