How do secondary consumers get carbon? Select one:

By eating producers.

By eating primary consumers.

By getting carbon dioxide from the air.

By having bacteria in their bodies, which get carbon dioxide from the air.

Match your vocabulary word to its definition. 1. emigration 2. immigration 3. migration 4. overpopulation 5. sustainable development 6. under population 7. unsustainable development 8. urbanization the movement from one place to another the number of people exceeds the available natural resources in an area leaving one's homeland to settle in a new place the increase in the population of a city the movement of people to a new country the ability to meet current needs without reducing the ability to meet future needs resources being used up at a faster rate than they can be replenished birth rate insufficient to replace the existing population

Because its government strictly controls its economy, north korea has a economy. a. command b. mixed c. traditional d. free market

The graph below plots the temperature and luminosity of stars on the main sequence.