I believe that in developed nations, the nutrients that are most lacking in a child's diet are the; calcium, iron and zinc. Zinc is needed for the activity of more than 100 different enzymes in the body and plays a role in the immune function. It aids in the maintenance of healthy immune function in kids and may reduce the frequency of mild upper respiratory tract infections. Calcium keeps the bones healthy and teeth thus supporting the skeletal structure and function. Iron is an important component of hemoglobin.
Answer:
it is w
Explanation:
i have done a similar question
Answer:
the directionality problem
Explanation:
In directionality problems, there are two variables and when these two variables are co-related then it becomes impossible to decide which variable is the cause of the particular problem and which variable is the effect of the problem.
So here there are two variables depression and insomnia but scientists can not determine that out of insomnia and depression which is the cause of the problem and which is the effect of the problem so it is unclear that whether the depression causes insomnia or the lack of sleep causes depression. Therefore this is an example of directionality problem
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Answer:
Yes
Explanation:
The earthworm has a rounded dorsal (back) surface and a flatter ventral (belly) surface. Usually the dorsal surface is darker than the ventral surface (though sometimes this is obscured in the preservation process).
Answer: Plants
Explanation: Plants are all ways at the start of the food chain becuase they are the only thig that can make their own food. Herbivores eat the plants to gain energy and carnivores eat the herbivores to gain their energy.
