Answer:
The correct answer is group 4.
Step-by-step explanation:
The excretory system is accountable for the eradication of wastes generated by homeostasis. There are many components of the body, which takes part in the procedure, like the liver, sweat glands, the kidney system, and the lungs.
The excretory system withdraws all the wastes from the body via the generation of urine and feces, it maintains the pH level by monitoring the concentration of hydrogen ions from the kidneys, and sustain water balance by monitoring the concentration of water inside the blood plasma at the time of the urea excretion process.