What nutrient serves as the main source of energy for the body?

The nutrient facts label on a food package lists the following: iron 50%. what does this figure indicate?

Birth control methods can be behavioral, barrier, or hormonal. which is a behavioral method of birth control? a. abstinence b. birth control pill c. condoms d. emergency contraceptio

How can individuals in communities prevent the global spread of hepatitis c? by getting vaccinated by washing their hands before eating by avoiding contact with the blood of others by avoiding contact with the saliva of others