Which of the following is a characteristic of compounds but not of mixtures
a.) retention of the properties of the original elements
b.)not easily separated
c.) not created by a chemical reaction
d.) involve blending but not bonding

Which is required for sexual fissiondiploid cell productionmeiosis

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

What are they five steps of cloning?