Thin hairlike outgrowth of an epidermal cell just behind the tip; absorbs nutrients from the soil.Hair like structures found on the epidermis cells of the root that allow a much larger surface area for water to be absorbed and used by the plant.
This tutorial looks at sex determination via the sex chromosomes, X and Y. Read it to get more info on X and Y chromosom..
The human respiratory system is an efficient system of inspiring and expiring respiratory gases. This tutorial provides ..
The gastrointestinal system breaks down particles of ingested food into molecular forms by enzymes through digestion and..
Lymphocytes are a type of white blood cell capable of producing a specific immune response to unique antigens. In thi..
Life, as we know it today, is presumed to have started in the sea and many of them were likely eukaryotic animal-like or..
This tutorial describes the different types and causes of brain damage. Find out how genetics, physical injury, lack of ..