Answer: c. No, all cells need molecule from food and molecules from air to work properly
Explanation:
Based on the scenario that's explained in the question, the athlete is wrong as every cells need molecule from food and molecules from air to work properly.
The molecules from the food we eat and the molecules from the air which is the oxygen we breath are essential for the proper functioning of the body system. The energy that is contained in the food that we eat is broken down and used by the cells in the body.
Answer:
A. (y/2) - 5, B. 3
Explanation:
Lets assume that the total number of pencils is y.
Katie gives Maggie half, i.e. = 
Hence Maggie has
pencils
If Maggie keeps 5 pencils and give the rest to Jamil, the expression for the number of pencils Maggie gives to Jamil therefore is;
Expression of pencil given to Jamil = (y/2) - 5
B.
To get the number of pencils Maggie gave to Jamil if Katie had 16 pencils, simply substitute y as 16.
(16/2) - 5
No of pencil given to Jamil = 8 - 5
= 3
Answer:
B. Iraq War, Conflict between Iraq and Iran