Many geologists follow a principle that states that the physical, chemical, and biological laws that operate today have also operated in the geologic past. This doctrine helps geologists understand the geologic past and determine the age of rocks. What is the name of this principle?

High blood pressure occurs when there is too much blood flowing through the blood vessels at one time. by changing the amount of water in the blood, blood pressure can change. the excretory system can to lower blood pressure.which would most likely occur in the kidney? a)more water would be transferred from the nephron.b)less water would be absorbed into the nephron.c)the amount of water in the bladder would decrease.d)the amount of water in the blood would increase.