You want to simulate the production of carbon dioxide (CO2) in a laboratory setting using carbon and oxygen atoms. What type of reactions do you need to facilitate in order to create CO2?
A. An oxidation, or the gain of an electron, and a reduction, or the loss of an electron.
B. An oxidation, or the loss of an electron, and a reduction, or the loss of an electron.
C. An oxidation, or the gain of an electron, and a reduction, or the gain of electron.
D. An oxidation, or the loss of an electron, and a reduction, or the gain of an electron.
D. An oxidation, or the loss of an electron, and a reduction, or the gain of an electron.
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Primary productivity on land is affected by _____
a. nutrient availability c. temperature b. amount of sunlight d. all of these
A pitcher throws a baseball by lowering the forearm to straighten the arm. During this movement, the biceps muscle ________ and the triceps muscle ________
A) contracts; relaxes B) relaxes; contracts C) relaxes; relaxes D) contracts; contracts
Cells communicate with one another via ________
A) cascades of gene activation B) the diffusion of RNA transcripts through adhesion junctions C) signal transduction pathways D) RNA splicing
Obligate anaerobes cannot tolerate any free oxygen in the environment and will die if exposed to free oxygen.
A) True B) False