The negative subatomic particle is (are) the
a. neutron.
b. proton.
c. electron.
d. neutron and proton.
e. proton and electron.
C
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The Intergovernmental Panel on Climate Change reported in 2007 that atmospheric carbon dioxide levels will nearly double by the end of this century. If this happens, what will be the atmospheric concentration of carbon dioxide?
A. 2.0 ppm B. 3.5 ppm C. 385 ppm D. 560 ppm E. 700 ppm
Lack of oxygen in cardiac muscle tissue leads to a buildup of lactic acid in the heart. This can lead to a condition of myocardial ischemia, causing a pain in the chest and left arm called ______
Fill in the blank(s) with the appropriate word(s).
A structure used in rapid escape or pursuit is
indicated by letter a. A. b. B. c. C. d. D. e. E.
What likely caused the slight increase of mean poison ivy biomass in the control plots?
A) random experimental error
B) an increase in atmospheric CO2 levels
C) There were more poison ivy plants in the control plots to begin with.