What are some possible scenarios that could lead to the extincion of a group of organisms?

Some possible scenarios include worldwide temperature change, worldwide disease breakout, environmental change, and lack of resources.

Is there any answer choices?

When a virus infects a host cell, it uses the cell's machinery to make copies of its own genetic material in a process called replication. finally, during the process of self-assembly, that protein shell and the copies of the virus's genetic material are assembled into new viruses.