Explain the characteristics scientists use when observing organisms and placing them in the six kingdoms .

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:

sound moves fastest in solids because the molecules are tightly packed and it allows sound to vibrate

answer; autosomal;