The ‘cultural revolution’ among homo sapiens
select one:
a. meant that by 40,000 years ago, most human populations on earth had begun practicing some form of agriculture
b. was the result of biological changes that have been preserved in the human fossil record
c. might have been due to biological changes that were not preserved in the human fossil record (e. g. changes in brain circuitry)
d. was eclipsed by the even greater ‘cultural renaissance’ that occurred 35,000 years ago among neanderthals

You need to make 500ml of 7h9(+) media with 1x adn and 30ug/ml of the antibiotic kanamycin. your stock solutions are 10x adn and 30mg/ml of kanamycin. the solvent is distilled water. how much of each component will you need to make the desired final solution?

Which term refers to the total dollar value of the goods and services produced in a country in a year?

What is the difference between the conducting zone and the respiratory zone of the respiratory system? the conducting zone is a series of cavities and tubes that move air to the respiratory zone where gases exchange with the bloodstream. the conducting zone exchanges gases between the lungs and the alveoli and the respiratory zone is a series of cavities and tubes that move air to the conducting zone. the conducting zone moves oxygen into the cells and the respiratory zone takes carbon dioxide away from the cells. the conducting zone moves oxygen into the bloodstream and the respiratory zone takes carbon dioxide away from the bloodstream.