<span>The organs that participate in vitamin D synthesis and activation are kidneys and liver.
</span>Vitamin D<span> is carried in the bloodstream to the </span>liver, where it is converted into the prohormone calcifediol.<span>Calcifediol is further hydroxylated by the kidneys to form </span>calcitriol and c<span>alcitriol circulates as a hormone in the blood, and regulates the concentration of </span>calcium<span> and </span>phosphate.
Answer:
True,Every chemical reaction obeys the law of conservation of mass.
Explanation:
the chemical energy is stored is carbohydrate molecule such as sugars, which are synthesized from carbon dioxide and water - hence the name photosynthesis .
