11. The kidneys retain water if blood pressure is too low. The kidneys act as what aspect of the blood pressure feedback loop A. Sensor
B. Effector
C. Hormone
D. Controller

true

coz they had the rank system in society according to the economic power of the people

radioactive dating, also known as  radioisotope dating  is a process that in  estimating the approximate  age  of  rocks. these data can be analyzed from  the studies dealing with the  decay of the radioactive elements that are present in these rocks. in nature, there are a few types of materials or atoms which are quite unstable and they spontaneously decay or breakdown to form other kinds of atoms.

answer by yourhope:

the speaker of which statement would be best served by joining an interest group?

i want politicians to make more of an effort for lgbt rights!

: )