Fiber.
It is needed to help move food through the gut, but can't be digested into anything.
The triangles are used to describe specific food groups and how many servings of each group are needed daily.
A nutrient is needed by the body to promote normal growth, provide energy, repair and more. :)
The point of eating food is that the body uses it; any food that you eat will be used in some way.
this is easy the food tube receives the food and the nutrients our body needs, while the air tube is used for inhaling and exhaling. Air is needed for the body to execute loco motions or movements
Water and food are needed by living things because they are used to produce energy for the body cells/body. (But energy can't be produced, only transferred, so just reword that however.)
Onions are in the vegetable food group because it is an edible plant used for cooking or eating raw.
The point of eating food is that the body uses it; any food that you eat will be used in some way.
Salt in itself is not dangerous. The body actually needs some salt to survive. Salt has been used in the past to preserve food, it does this by removing the water in the food which is needed for bacteria to grow.
food gives out nutrients which inturn produces energy. food is a supplement to the body's energy
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Energy.
Food is used to fuel the body. Some foods are better quality fuels than others.