The body needs calcium and phosphorous because phosphorus works with calcium to help build bones
<span>Algae is a prime example of a pioneer species that would be found where a glacier has retreated, because the glacial retreat allows for its growth. This process is called succession and usually starts with lichen, an relative of algae. Lichen grows on bare rock which is left behind. Afterwards, acids produced in this environment cause dirt and soil to be created.</span>
He movement of water out of the proximal convoluted tubule follows Na+ by osmosis and is referred to as obligatory water reabsorption.
<h3>What is obligatory water reabsorption?</h3>
Regardless of the body's level of hydration, the term "obligatory water reabsorption" refers to the reabsorption of water in the early parts of the nephron that occurs independently of the antidiuretic hormone (ADH), also known as vasopressin.
<h3>What is osmosis?</h3>
Osmosis is the naturally occurring net movement or diffusion of solvent molecules over a selectively permeable membrane from a location of high water potential to a region of low water potential, in a manner that tends to balance the solute concentrations on the two sides.
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