Answer:
skin it protects from germs
It is true that the collecting tubules merge to form the ducts of Bellini.
Papillary ducts or collecting ducts or the renal collecting tubules were formerly known as the ducts of Bellini. They are structures which are present in the distal portion of the collecting ducts in our kidneys.
These ducts are formed when collecting tubules merge. They receive the renal filtrate, which is the precursor to urine, from a number of medullary collecting ducts and it empties into a minor calyx. These ducts regulate the reabsorption of water and also balances the electrolytes.
Hence option a is the correct option.
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It's the plasma's function to ensure that the muscles of a person exercising receives all the needed amount of oxygen. This is to make sure that the person will not lack oxygen and cause them to pass out.
Meters are correct you have centi, milli, kilo
I know it makes ATP but that's a type of energy is that an ok answer or does it have to be more specific ??/