I believe that The answer is DNA
People in the United States are deficient in iron, , which can result in a decrease in fitness due to reduced oxygen-carrying capabilities.
As we know iron is a part of hemoglobin which carries oxygen and therefore this explains why there is reduced oxygen carrying capacities.
10 million people in US are iron deficient it is the decrease in the content of iron.
it is caused when people take low iron food or there is excessive blood loss.
People in us have now start taking more plant-based food which has non heme kind of iron in low amount, this is one of the reasons for iron deficiency.
symptoms observed in united states people due to iron deficiency, fatigue, headache, shortness of breath, nausea etc.
To know more about iron deficiency,
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B. makes the most since. So im going to go with B
Answer:
Explanation: It states that microorganisms known as pathogens or "germs" can lead to disease. These small organisms, too small to be seen without magnification, invade humans, other animals, and other living hosts. Their growth and reproduction within their hosts can cause disease.
WHAT IS A DISEASE?
a disorder of structure or function in a human, animal, or plant, especially one that has a known cause and a distinctive group of symptoms, signs, or anatomical changes:
WHAT IS A GERM?
a microorganism, especially one which causes disease.
Low calorie(carbohydrates) things. Example: Instead of White bread they would need Whole Wheat bread and less major sugars like over doing it on pop and candy sometimes even simple veggies like corn or fruits like Strawberries because of their Natural sugars
