Hello! Your answer would be b, regulation of blood cell size.
The kidneys are vital organs in your body. They filter blood, and extract wastes from it which go on to turn into urine. The kidneys regulate pH, blood osmolarity, blood volume, blood pressure, and ionic composition.
They filter urea, uric acid, excess potassium ions, etc. They also return useful items, such as blood cells, plasma protein, glucose, amino acids, some salts, and some water to the blood. All of these things help contribute to the kidney's job of regulating many aspects of blood.
This is a very brief description of what the kidney does, if you would like a more detailed list, look into secretion, filtration, and reabsorption.
Hope this helps!
The answer option which is not a major function of the kidney is: B. regulation of blood cell size.
What is a kidney?
A kidney can be defined as one of a pair of bean-shaped organs that helps in maintaining balance through the removal of waste and extra water from the blood as urine, in the body of a living organism (vertebrate).
This ultimately implies that, kidneys are organs that are saddled with the responsibility of filtering and eliminating wastes in the blood.
The major functions of a kidney:
Generally, the major (main) functions of a kidney include the following:
In conclusion, the regulation of blood cell size is not a function of a kidney.
Read more on kidney here: https://brainly.com/question/3888340
