A scientist will test it and support it with things so the scientist knows its true and that should be a theory no longer a hypothesis if they proved the information.
I believe that the answer to the question asked above is that the process of nature is the basic process without involving the human interventions. Nature is used to aided the in medical intervention because they provide the basic things about living organisms.
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This answer is dandelion because i seen the answer to this in my book yesterday!
Mitosis produces two somatic cells.