What happens during the Krebs cycle? 1.ATP and NADH from food are converted to CO2 and O2.
2. NADH from glycolysis is converted to ATP and O2 molecules.
3. Glucose is broken down in a cycle of reactions to form pyruvate.
4. Pyruvate is broken down in a series of reactions to form CO2.

Astudent sees several ants walking up a wall following the exact same trail that an ant took earlier. she wants to apply the scientific method to determine how the ants detected the trail. which of these steps would come first in her application of the scientific method? perform an experiment by cleaning the scent away from part of the trail. draw a conclusion that the ants follow a scent trail. make a prediction about what the ants will do after she cleans away part of the trail. hypothesize that the ants are following a scent trail that the first ant left.