What do humans rely on as a source of carbohydrates, since we cannot make them ourselves?

carbohyfrates create energy for the body and our bodies do not produce carbs but you can find it in foods like: bread, pastas, rice

Explanation:

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"Carbohydrates are found in a wide array of both healthy and unhealthy foods—bread, beans, milk, popcorn, potatoes, cookies, spaghetti, soft drinks, corn, and cherry pie. They also come in a variety of forms. The most common and abundant forms are sugars, fibers, and starches."

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Questions:

What does she need from the food she ate and the air she breathes so that she can go on her run? eating enough food, because cells need molecules from both food and air to work

How do Rosa’s body systems work together to get the molecules she needs into her cells? These body systems all function to maintain the cells in your body: the circulatory, respiratory, and digestive systems provide the nutrients and energy your cells need to live.

How do her cells use these molecules to release energy for her body to run?Chemical energy is stored in the bonds of sugars. When a sugar molecule is broken down, a usable form of energy is released for the cell's life functions. Cells can release energy in two basic processes: cellular respiration and fermentation. ... In cells use oxygen to release energy stored in sugars such as glucose.