In active transport, materials move from an area of high concentration to an area of lower concentration (goes down the concentration gradient) and it requires or uses energy in the form of ATP (adenosine triphosphate)
<span>by damaging the plant's leaves and changing the chemistry of soils and surface water</span>
<span>Traction
The question pretty much defines the term "traction" as used in orthopedic medicine. There are two main types of traction, skin traction and skeletal traction. If traction is used, it is generally used in conjunction with some other form of treatment.</span>