When pollution is caused by nutrients and fertilizers, this is called nutrient pollution, and it leads to an overproduction of algae and other aquatic plants. This overabundance of plants and algae causes problems, because they cover the water surface and prevent sunlight from reaching the plants underwater.
Reverse T3 is actually an antithyroid -- T3 is the active thyroid that goes to the cells and stimulates energy and metabolism. Reverse T3 is a mirror image -- it actually goes to the receptors, sticks there, and nothing happens. So it blocks the thyroid effect. Reverse T3 is kind of a hibernation hormone, in times of stress and chronic illness, it lowers your metabolism.
  T2 is a type of MRI imaging technique in which TE and TR (Echo time and Repetition time) are longer and the image's contrast and brightness is determined specifically by â¦ T2 signals. A hyperintense lesion would appear as a bright white spot on a T2-weighted MRI, and its location is in the left centrum semiovale.reaking down the phrase by individual parts: T2 - An indication of the â¦ type of scan that was done. In a T2-weighted scan, areas that are fluid-filled appear bright, while areas that are fatty appear dark. A T1 scan would show the opposite results. Hyperintensity-An indication of a bright region on the scan.