Viruses cannot live on their own, and instead need to infect a/n to replicate. The two primary life cycles of viruses are the lytic cycle, also known as the virulent cycle, and the cycle, also known as the temperate cycle.
A/n is a virus that infects bacteria.

host cell

lysogenic

bacteriophage

cell wall

resistance  

emerging

Viruses evolve and reproduce. They have genes encoded on nucleic acids.

They are not able to reproduce without a host. They don't have their own cytoplasm.

Prokaryotes have beneficial roles in the carbon and nitrogen cycles. They help to make the carbon in the air usable by plants and break down nitrogen into the reactants that can be used by other organisms.

Viruses recognize specific receptors that are embedded in their host's cell membranes. These receptors are normally used by the cells as gateways, but viruses can insert their DNA or RNA into them. That they must recognize specific receptors limits them to only infecting the species that have that particular receptor. They can infect cells because they're designed in such a way to only infect species and cells. Once inside the cell, the virus can begin reproducing.

Metagenomics has advanced our understanding of how prokaryotic organisms exist and function in natural ecosystems. We are coming to understand that different species assemblages are associated with different health outcomes.

Explanation:

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b would be the right answer