Carbohydates are essential in any diet because

Yes!

Explanation:

Carbohydrates are all about energy and are found in foods like fruits, vegetables, breads, pasta, and dairy products. Your body uses these foods to make glucose, which is your body's main energy source. "Carbohydrates provide the body with the energy it needs and are a good source of many vitamins and minerals.

I found this from, https://www.everydayhealth.com/weight/why-carbohydrates-are-important-for-your-diet.aspx

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answer; 60-100; beats per minute

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.