Answer:
A. Antibiotic
Explanation:
I think it is A. because it changes between the experimental group and the control group.
Can you restate your question. I don't understand what you're asking (:
Rounded seeds are 1/4 I think...
Viral replication depends on the specific virus but for most, the virus first needs to enter its host and uncoat its proteins in order to reveal it's DNA/RNA.
Depending on whether or not the virus is a retrovirus, it may need to integrate into the host genome to replicate.
Most viruses use the machinery in order to replicate, and a few package their own enzymes needed for replication.
Sorry this is so long! Hopefully this helps!
Viruses are the microorganisms who needs to infect the living host cells, in order to replicate or reproduce. These infectious agents are capable of injecting and infecting all the life forms present, including the plants, animals and bacteria. The viruses were not among the first organisms to evolve as in order to replicate themselves and continue through the time they needed other organisms' cell.
Hence, the correct answer is 'viruses have to infect a living cell in order to reproduce'.
