Some students at a middle school conducted a laboratory investigation to learn more about the physical properties of different elements. They observed four samples and recorded their observations in the table above. Based on these observations, which sample is most likely a nonmetal? A.
Sample 1

B.
Sample 2

C.
Sample 3

D.
Sample 4

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.

Set comes up with for examples of sound waves ocean wave light wave and hand wave which of tonys examples is not an actual scientific wave

Which of the following is a common response to cell signaling?