2 Points
Which function is performed by Earth's atmosphere?
A. Ultraviolet rays are prevented from reaching the ozone layer.
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B. Magnetic charges from space are prevented from reaching Earth's
surface.
C. Charged particles from the sun are prevented from reaching
Earth
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D. Earth's temperature is raised and moderated by trapping in heat.

Building glycogen from glucose molecules is an example of

Which of the following is the correct definition of chemical energy? a. energy an object has because of its motion or position b. energy resulting from the flow of charged particles, such as electrons or ions c. energy produced from the splitting of atoms d. energy stored in chemical bonds of molecules

You exhale co2 which is produced during cellular respiration.  co2 combines with the water in your blood's plasma to make up one half of the body's most important buffer pair, carbonic acid.  the more physical activity you engage in, the more co2 your body is producing.  you can see this by putting some of the cabbage indicator in a glass and then blowing bubbles into it through a straw.  can you see a change in the color of the indicator?