13. what is an entomologist?

14. how do scientists test theories?

15. write down one of kettlewell's predictions.

16. dark moths were found in what parts of the country?

17. how did kettlewell directly study the moths?

18. why did dark moths have a survival advantage?

19. when kettlewell recaptured the marked moths, what did he find?

20. where did kettlewell publish his findings?

The organelle pictured is found in cells of and is theorized to have once been an independent organism.

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.

How can active reading strategies you? o a. they can you get into better physical shape. o b. they can you read fewer science articles. o c. they can you understand what you read. o d. they can you avoid reading altogether.