Shoulder joint: The flexible ball-and-socket joint formed by the junction of the humerus and the scapula. This joint is cushioned by cartilage that covers the face of the glenoid socket and head of the humerus.
We need to eat because the nutrients in food is what causes our body to work! It gives us energy, helps us grow, and makes sure that all of our organs perform like they should. Not eating can make you tired, cranky, and even sick if you don't eat for a long time. And what you eat is just as important as when cookies and candies are fun sometimes foods, but it's the vitamins and minerals in fruits, vegetables, and proteins that make us healthy and strong! 1  Share.
It is because we need to get nutrients to survive. Hunger is the motivation for us to be able to know that we need to get the nutrients in our body. But how do we really know that we are hungry? The answer can be analyzed by three different components: biological, learned, and cognitive. Hunger and Eating Based on Biology