why is it important that a person infected with the flu receive medical treatment within the first two days of their illness?

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:

idk why hjggjhjkhj

the correct answer is b

a=c and then d= c because of the band so you get ac/dc and you add them together you get sound waves