"The rotating part of the microscope at the bottom of the body tube; it holds the objectives." -utahscience.oremjr.alpine.k12.ut.us
Explanation:
dependent is what ur measuring, independent is the diff salt concetration
and the control group is what stays the same like the water or the plant. not sure, it's not rlly clear
b:failure of pituitary gland to secrete ADH .caauses diabetes inspidus.
c:located at the kidney.cortex dark in colour and its the outermost.medulla red in colour and lies at the centre.