1. When the number of Calories a person consumes is equal to the number of Calories he or she burns in a day, that person's body is in .2. Someone who is in eats more Calories in a day than he or she burns.3. occurs when the number of Calories a person burns in a day is greater than the amount he or she consumes.4. Used to help assess overall health, is the ratio of a person's body weight to the square of his or her height.5. The is the amount of energy the body uses in order to perform its basic physiological functions.6. The refers to the number of Calories burned in order to digest food and absorb, transport, metabolize, and store the nutrients the body needs.7. A person's refers to his or her total body mass minus fat mass.8. The refers to all energy expended on body movement above basal levels.

1.When the number of Calories a person consumes is equal to the number of Calories he or she burns in a day, that person's body is in energy balance  

2.Someone who is in positive energy balance eats more Calories in a day than he or she burns.

3.Negative energy balance occurs when the number of Calories a person burns in a day is greater than the amount he or she consumes.

4.Used to help assess overall health, Body mass index is the ratio of a person's body weight to the square of his or her height.

5.The basal metabolic rate is the amount of energy the body uses in order to perform its basic physiological functions.

6.The thermic effect of food refers to the number of Calories burned in order to digest food and absorb, transport, metabolize, and store the nutrients the body needs

7.  A person's lean body mass refers to his or her total body mass minus fat mass.

8.The energy cost of physical activity refers to all energy expended on body movement above basal levels.

Explanation:

the metabolism is a set of chemical reactions that take place in our cells. Our metabolism converts the food we eat into the energy we need for every action we do.