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Serhud [2]
3 years ago
5

2. Until the 1500s, doctors thought diseases were caused spontaneously. Scientists began proposing that

Biology
1 answer:
laila [671]3 years ago
7 0

Answer:

a

Explanation:

science changes fluidly over time. take for instince the corona virus, we just learned about the delta variant. hope this helps and have a nice day :)

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