1. The hand is one of the most complex and beautiful pieces of natural engineering in the human body. It gives us a powerful grip but also allows us to manipulate small objects with great precision. ... Most of its movements are controlled by muscles that aren't located in the hand at all, but in the forearm
2. Many animals have developed specific parts of the body adapted to survival in a certain environment. Among them are webbed feet, sharp claws, whiskers, sharp teeth, large beaks, wings, and hooves. In most aquatic animals, swimming is a must. But for us humans it would be our eyes to see of course our nose to breath out mouth to insert food and water our heart of course because without it you could die our brains because we need those and lastly our feet because without feet we wouldn’t be able to balance or even stand at that