Which phrase best describes dna?
a. the structure that allows biochemical reactions to occur
b. the structure that translates information into action
c. the molecule that contains all the genetic material
d. the molecule that breaks down sugars in the cell

Blood has traveled from the heart to the toes. which describes the next step of the circulation process?

How does an angiosperm prevent self pollination

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