Answer: carbohydrates,lipids , protein and nucleic acids.
Explanation:
I believe the answer is group 4
Excretory system removes all the wastes from the body through the creation of feces and Urine, maintains the PH level trough the regulation of H+ from the kidneys, and maintaining water balance by controlling the water concentration within the blood plasma during the excretion process of Urea.
The answer to your question should be B.
You can check with others if you want.
The answer makes the most sense
your answer is C so mark me Brainliest
