1. Pulmonary circulation is a circulation between heart and body part, whereas systemic circulation is a circulation between heart and lung. true or false

Study the diagram of a cell. which structure is found only in plant cells and functions in the process of photosynthesis? w x y z

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

Did you know that a single bee would have to go to over 2 million flowers to make a single pound of honey?