The answer is Nutrition because it match the definition. It’s all about good balance diet too.
Answer:
Humans are able to synthesize certain vitamins to some extent. For example, vitamin D is produced when the skin is exposed to sunlight; niacin can be synthesized from the amino acid tryptophan, and vitamin K and biotin are synthesized by bacteria living in the gut.
Explanation:
i think its OB
Explanation:
im not sure tho....sorry if its wrong
Well to answer your question blood<span> enters the </span>heart through<span> two large veins, the inferior and superior vena cava, emptying oxygen-poor </span>blood<span> from the body into the right atrium of the </span>heart<span>. As the atrium contracts, </span>blood<span> flows from your right atrium into your right ventricle </span>through<span>the open tricuspid valve.</span>