Answer:
Oxygen and pyruvate.
Explanation:
The krebs cycle is a stage of cellular respiration and occurs in aerobic organisms. In this case, we can say that the Krebs Cycle only occurs in the presence of oxygen, being essential for the completion of cell respiration.
The Krebs cycle only occurs after the completion of glycolysis, as it needs to be initiated by pyruvate, which is a molecule resulting from glycolysis. In this case, in addition to oxygen, the presence of pyruvate is essential for the krebs cycle to occur.
Answer:
An <u>Earthquake</u><u> </u>is one of the most dramatic triggers of sudden mass movements.
Wind because its not mechanically eroding them..
Answer:
good question, you don't. Or simply wait untill you finish choking bart
Answer: An atom with an electrical charge is an <u>a. ion</u>.
