Answer:the correct answer would be c
Explanation:I just did it
A virus cannot infect a host cell unless i<span>t's surface proteins fit receptor molecules on the host cells surfaces. And in order to reproduce it must first infect a host cell.
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Has reached it's tipping point, I think. Your question was not very specific, so hope this helps.
the pigmint called chloroplast
Can you give me the options for the question above?