What is the main function of the krebs cycle?
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a. using pyruvate to make energy carriers
b. producing large numbers of atp molecules
c. breaking down energy carriers
d. producing oxygen for use in photosynthesis

many phylogenetic trees have a single lineage at the base representing a common ancestor. a lineage that evolved early from the root and remains unbranched is called basal taxon. when two lineages stem from the same branch point, they are called sister taxa.

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explanation:

c is the correct answer hope this !