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Viruses reproduce within the living cells of the host and use the cellular machinery to synthesize their own genome and other components. To gain entry into cells, they have developed a variety of mechanisms to introduce their genes and proteins into host cells.
Answer:
They allowed businesses to operate with few regulations.
By experimenting
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The first one is 100% and the second one is 50%
A portion of the food is used by the plant itself in cellular respiration and the rest is consumed by animals or by decomposers.