Yes it is true because after many years of water or wind eroding away at the rock will cause it to break up into tiny pieces
The copepods would most likely decrease because the copepods eat the shrimp
Scientists who do this are doing what is considered to be and called cloning. Cloning is exactly this - taking cells from one organism and trying to produce and recreate an identical (from a genetic perspective) organism.
This can be done in a routinely fashion but there are serious ethical considerations nowadays.
Asking a question is usually what the first step is.
