Science, asked by hananlaskar9836, 7 months ago

2)Viral vaccines are hard to make because:
a. Viruses are too small to for experiment
b.Viruses have very few machinery and they use host m
C. Virus are neither dead nor living
d. All of above​

Answers

Answered by princess2410
2

Answer:

the answer is all of the above I guess

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