Water in a stream “flows.” What “flows” during gene flow?

Genetic Material

Explanation:

Essentially, gene flow is the transfer of genetic material to different populations and individuals. Thus, genetic material "flows" like water "flows" in a stream.

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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:

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