Plz this is a important part of a exam the following diagram shows the branching tree for four kingdoms and some of their shared derived characteristics. what shared characteristic can be written at point x? use complete sentences to explain your answer.

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:

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.