Answer:
They are called the building blocks of an organism because all living things are made up of billions of cells that can reproduce, build and change that's why it is called the building blocks of all living things.
Explanation:
The process that transports
solutes, including many drugs, into the tubular fluid is called tubular
secretion. Under this process, there is transfer of materials from peritubular
capillaries to the renal tubular lumen and the secretion is caused mainly by
active transport and passive diffusion.
This process is called osmosis whereby water exits the cell through its selectively permeable membrane and into the salt solution to dilute and balance the pressure caused by the concentrated salt solution.