The right answer is D. renal regulation.
Among the many factors that modulate tension (vessels, heart strength, blood volume ...), the kidney plays a vital role because it makes an enzyme called renin that helps increase blood pressure and it regulates the outflow of sodium and water, which contribute to the elevation or diminution of blood pressure in the arteries.
Answer:
A sudden shortage of goods is called a shortage and happens for a variety of reasons in economics.
The answer is Vacuoles. After water enters this cell through the osmosis, it expands to absorb water and contract to release it.