Meaning of Investment from different Perspectives: Investment is a term frequently used in the fields of economics, business management and finance. It can mean savings alone, or savings made through delayed consumption. Investment can be divided into different types according to various theories and principles.
Development at 4 Weeks. At this point the baby is developing the structures that will eventually form his face and neck. The heart and blood vessels continue to develop. And the lungs, stomach, and liver start to develop.
Early Formation: Teeth Start Early. 1  Teeth begin to form in the unborn fetus between 4 and 6 weeks. 2  This is when the basic substance of the tooth forms. 3  Around 3 months into the pregnancy, the hard tissue that surrounds the teeth forms. 4  This process is called mineralization.