What happens to pyruvate molecules formed in glycolysis in the absence of oxygen?
a) they will enter the krebs cycle.
b) they will undergo the process of fermentation.
c) they will move directly to the electron transport chain.

The structure of a dna molecule is best described as a. one long strand of nucleic acids b. two strands of dna nucleotides joined by hydrogen bonds c. two strands of amino acids joined by hydrogen bonds d. one long strand of amino acids

What do all of the above organisms have in common

The presence of iron oxides in rocks, formed during a specific time period, can be used as evidence of oxygen in the atmosphere during that time period. question 18 options: true false