Viruses are alive because they often contain DNA. not alive because they can onl
ID: 80223 • Letter: V
Question
Viruses are alive because they often contain DNA. not alive because they can only carry out photosynthesis and not cellular respiration. alive because they mutate and change over time through evolution. not alive because they are not made of cells and require a host cell for reproduction. Which of the following statements about viruses is FALSE? People can get colds and flus again because the viruses are constantly mutating. The widespread use of antibiotics has led to resistant strains of viruses. lf a virus mutates, the immune system may not recognize the virus. Vaccines are available to prevent several diseases caused by viruses.Explanation / Answer
Part D: Viruses are not considered alive because of their inability to reproduce without host cells and donot use typical cell division approach for reproduction.Viruses are complicated assemblies of molecules, including proteins, nucleic acids, lipids, and carbohydrates, but on their own they can do nothing until they enter a living cell. Without cells, viruses would not be able to multiply.
The last option suits the best to the above explanation : Viruses are not alive because they are made of cells and require a host cell for reproduction
PART E
Antibiotics kill bacteria, not viruses. If you take antibiotics for a viral infection (like a cold or the flu), you will not kill the viruses, but you will introduce a selective pressure on bacteria in your body, inadvertently selecting for antibiotic-resistantbacteria.
Hence second option is FALSE
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