Answer:
A calorie is a unit of energy. In nutrition, calories refer to the energy people get from the food and drink they consume, and the energy they use in physical activity. Calories are listed in the nutritional information on all food packaging. Many weight loss programs center around reducing the intake of calories.
Explanation:
The immune system is the body's first line of defense against pathogens.
Answer:
When you eat, food enters your digestive tract. The digestive tract is a series of organs that form a pathway from your mouth to your anus. As food moves down this pathway, it is processed and changed to waste. After food is changed to waste, it is pushed out of your body in a bowel movement.
Explanation:
Have a nice day and stay safe<3
B because it would be the option that would keep you away from social media
