Which type of microbe is a parasite of cells, is acellular, and bridges the gap between what is considered to be living and nonliving?Multiple choice question.VirusProtistPrionBacterium

The correct answer is Virus. Viruses are considered acellular as they do not have a cellular structure. They are parasites of cells because they need to infect a host cell in order to reproduce. They also bridge the gap between what is considered to be living and nonliving because they show characteristics of both. They are considered nonliving outside of a host cell because they cannot reproduce or carry out metabolic processes on their own. However, once they infect a host cell, they can reproduce and carry out these processes, which are characteristics of living organisms.