Question

question: which hypothesis states that viruses came from living cells that were once capable of reproduction but lost complexity over time? answer options: select one of four regressive progressive coevolution retrogressive feedback: incorrect. there are three theories as to the origin of the virus. try again.

Explanation:

The regressive (or retrogressive, though regressive is the standard term here) hypothesis of virus origin proposes that viruses originated from once - independent living cells that lost genetic material and complexity over time, becoming dependent on host cells. The progressive hypothesis suggests viruses originated from genetic elements that gained the ability to move between cells. The coevolution hypothesis states that viruses and cells evolved together. So the correct hypothesis for the given description is the regressive hypothesis.

Answer:

A. Regressive