Question

1. which mineral is essential for the formation of red blood cells? calcium magnesium potassium iron 11. which of the following is a good source of omega - 3 fatty acids? salmon flax seeds walnuts all of these are correct 12. which of these food groups is primarily responsible for providing protein? dairy meats and legumes fruits and vegetables grains

Explanation:

1. Iron is crucial for the formation of hemoglobin in red - blood cells, which helps in oxygen transport. Calcium is important for bone health, magnesium for muscle and nerve function, and potassium for maintaining fluid balance and nerve impulses.
2. Salmon is a fatty fish rich in EPA and DHA (types of Omega - 3 fatty acids). Flax seeds contain ALA (another type of Omega - 3 fatty acid), and walnuts are also a good source of ALA.
3. Meats and legumes are high - protein food groups. Dairy provides calcium and other nutrients along with some protein, fruits and vegetables are mainly sources of vitamins, minerals and fiber, and grains are a source of carbohydrates.

Answer:

1. D. Iron
2. D. All of these are correct
3. B. Meats and Legumes