Some research suggests that individuals who take both vitamin c and zinc at the onset of one common cold experience fewer cold symptoms

This is true both vitamin c and zinc are important immunity boosters check out zycam or emergenC products and both these elements are in them to shorten colds

The most familiar non-vascular plants that contain simple conducting cells are Mosses. Most non vascular are bryophytes and are small in size, they lack vascular tissues and also lack true leaves, seeds, and flowers. Instead of roots, the have hair-like rhizoids that functions to anchor them to the ground and to absorb water and mineral salts from the soil. They are three types, mosses, hornworts and liverworts.