Caffeine is an inhibitor of phosphodiesterase. therefore, the cells of a person who has recently consumed coffee would have increased levels of
a) phosphorylated proteins
b) camp
c) adenylyl cyclase
d) activated g proteins

25. what does meiosis create? haploids or diploid? somatic cells or gametes?

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

1. describe the structure and function of the specialized cells you observed in the video. 2. research the types of cells present in the kidney.