What's a unique property of retroviruses that makes them highly adaptive and potentially very devastating?
A. Retroviruses were discovered in the 1970s.
B. Retroviruses use RNA as their genetic material
C. Retroviruses can't replicate.
D. Retroviruses are viruses that travel backward in the cell.

B. Retroviruses use RNA as their genetic material. Correct

Explanation:

Penn Foster

Retroviruses use RNA, not DNA, as their genetic material; this way, the retrovirus can integrate its DNA into the DNA of the host cell so the retrovirus can continue to replicate.

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: