A. A UNIT OF ENERGY SUPPLIED BY FOOD.
A calorie is a unit of energy. Historically, scientists have defined "calorie" to mean a unit of energy or heat that could come from a variety of sources, such as coal or gas. In a nutritional sense, all types of food — whether they are fats, proteins, carbohydrates or sugars — are important sources of calories, which people need to live and function.
Also called aerobic<span> exercises. Any of various sustained exercises, like jogging, rowing, swimming, or cycling that stimulate and strengthen the heart and lungs thereby improving the body's utilization of oxygen.</span>
Aerobic exercise stimulates the heart rate and breathing rate to increase in a way that can be sustained for the exercise session. In contrast, anaerobic ("without oxygen") exercise is activity that causes you to be quickly out of breath, like sprinting or lifting a heavy weight.
Answer:
Fuerza: generar tensión frente a una resistencia
Resistencia: mantener un esfuerza contra algo más
Velocidad: maxima intensidad de un esfuerzo
Explanation:
