Describe what happens in the nephron of the kidneys. What is special about the structure that allows for the reabsorption of nutrients, water, and salts?

first answer

Each nephron of the kidney contains blood vessels and a special tubule. As the filtrate flows through the tubule of the nephron, it becomes increasingly concentrated into urine. Waste products are transferred from the blood into the filtrate while nutrients are absorbed from the filtrate into the blood

It is evolution, because we all have some of the same traits like eye color or shape or ears.