What differences, if any, did you observe in air quality index and particulate matter concentration from day to day? state a possible explanation. include a table of air quality index and concentration of particulate matter during the time span of the field study.

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen

9. the history of life on earth is recorded in

1. -define adaptation2 explain darwin's theories of descent with modification and natural selection in detail3. -explain how each of these provides evidence for evolution: a. -fossil record, including superposition and transitional fossilsb-anatomy, including homologous structuresc-biological molecules, including dna and proteins4. -explain the difference between convergent and divergent evolution.5. -define and give three examples of artificial selection6. -define and give one example of coevolution.7. -explain biodiversity and how it benefits humans.8. -explain a type of population lest affected by environmental change.