<span>because they can accelerate heart rate, increase muscle tension, elevate blood pressure</span>
OK so the best choice given will be option C.
Answer:
1. If you mom and dad both have blue eyes then ou probably have blue eyes
2. If your dad is tall and your mom is short yu will probably be tall
3. If you r family has history of cancer you might get cancer
Explanation:
Heredity can affect your health in both posotive or negative ways depending on the genes you inherited from your parents.
What don't you understand?
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.
