Population density is the total of people in a country， which does not relate the size of the population to the resources available。 （ ）
举一反三
- What is meant by the "unused portion of K"? A: the density-dependent growth rate of a population B: the total number of resources available to a population C: the number of organisms still left to populate an environment D: the maximum number of organisms tha an environment can support
- 149 million people out of the US total population of 299 million.
- The British population is very unequally distributed: over of the total population lives in urban areas.
- 中国大学MOOC: Which of the following does NOT bring about evolution in a population?
- Which population category equals the sum of employed and unemployed people? A: working-age population B: labor force C: young and institutionalized D: not in the labor force