Wendys Training Practice Test

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What is a basic characteristic of a virus?

  1. Can be seen with the naked eye

  2. Cannot survive in acidic environments

  3. Requires a living host to grow

  4. Thrives in dry conditions

The correct answer is: Requires a living host to grow

A basic characteristic of a virus is that it requires a living host to grow. Viruses are obligate intracellular parasites, meaning they cannot replicate or grow outside of a host cell. They rely on host cells to provide the necessary machinery for their replication. This characteristic distinguishes viruses from other microorganisms like bacteria or fungi, which can grow and replicate independently in various environments. Therefore, option C is the correct choice as it accurately describes a fundamental feature of viruses.

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