Answer:
my classes are also boring
Explanation:
I think the answer is :extinct
The fact that species are becoming immune through natural selection being passed down generations
The correct answer is option A- HIV virus.
HIV virus is an example of enveloped virus, that has the ability to infect a host cell by attaching itself to it and fusing with the host cell. Once infected, the virus leaves the host cell and moves to another cells to infect them. The HIV virus contains glycoprotein spikes to attach to the host cell.
