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.
10) -itis
11) Trans
12) Hyperemesis
13) Suffix
Answer:
daily
Explanation:
example the teacher could test temp. ask if student has been exposed to illness etc.