Q. A fall in the GFR activates the

 349  162 Excretory Products and their Elimination Report Error

Solution:

Fall in Glomerular Blood Flow (GBF)/ Glomerular Blood Pressure (GBP)/ and low Glomerular Filtration Rate (GFR) activates the Juxta Glomerular (JG) cells in the kidneys to release renin which brings the GFR back to normal.