In which of the following ways is the function of the surface of a micro sphere similar to the function of an actual cell membrane

What types of energy transfers and energy transportations are involved in the domino chain reaction?

Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?

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