Charles Darwin theorized that all species undergo a natural cycle of evolution in order for the species to survive and thrive within its given environment. In the case of a catastrophic event, Mother Nature will naturally find a way to support life and the organisms that are within her care.
I think it might be lyosomes as they help break down waste and other stuff in a cell.
A water falls from the atmosphere as rain,ice,or snow called perticipation
Hope this helps
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-Kayla <3