List the major subdivisions or components for each of the four types of compounds—carbohydrates, lipids, proteins, and nucleic acids—within living organisms.

1. emigration the movement of people from one place to another 2. immigration a situation in which resources are being used up at a faster rate than they can be replenished 3. migration the leaving of one's homeland to settle in a new place 4. overpopulation the movement of people to a new country 5. sustainable development a situation in which the birth rate is not sufficient to replace the existing population 6. underpopulation the ability to meet current needs without reducing the ability to meet future needs 7. unsustainable development the increase in the population of a city 8. urbanization a situation in which the number of people exceeds the available natural resources in an area

The cluster of developing cells from conception until birth is called an

What is the process of pulling apart an n2 molecule nevermind i got it