Question

1. scientists debate whether or not viruses should be considered to be alive. one of the main arguments against viruses being alive is that they are not -

○ made of cells
○ found in nature
○ able to reproduce
○ organic in nature

1. viruses are able to reproduce themselves, but only through the action/use of -

○ other viruses
○ macrophages
○ host cells
○ solar energy

Explanation:

For question 8: A key argument against viruses being alive is their inability to reproduce independently—they require a host cell's machinery.
For question 9: Viruses lack their own reproductive systems, so they use host cells to replicate their genetic material and assemble new virus particles.

Answer:

1. able to reproduce
2. host cells