In what ways do viruses resemble living organisms? What are spikes or peplomers? Give two functions that spikes might serve in the virus life cycle. Describe the varied types of effects brought about...

In what ways do viruses resemble living organisms? What are spikes or peplomers? Give two functions that spikes might serve in the virus life cycle. Describe the varied types of effects brought about by animal viruses after infecting their hosts. Define teratogenesis. Name any three human viruses that are teratogenic. Describe the effects they cause.