<span>A collection of mechanisms, behaviors and physiological processes that prevent the members of two different species that cross or mate from producing offspring, or which ensure that any offspring that may be produced are sterile :)</span>
Answer:
D. carbon
Explanation:
all organic compounds consist of at least 1 atom of carbon which is then bonded to hydrogen, oxygen, nitrogen, etc.
The citric acid cycle – also known as the TCA cycle or the Krebs cycle – is a series of chemical reactions used by all aerobic organisms to release stored energy through the oxidation of acetyl-CoA derived from carbohydrates, fats, and proteins into adenosine triphosphate and carbon dioxide.
There would be a decrease in formation of NADPH, that is used in the Calvin cycle.