1. natural selection acts on existing traits because you can not evolve into something you didn't have
2. original structures evolve to accomplish new function in order to survive
Hi!
The answer is B) it should be repeated by other scientists.
Hope this helps!
-Payshence xoxo
No because it does not use energy, reproduce, have a metabolism, breathe, or maintain homeostasis and its not made up of cells.
The answer is A. V-shaped trench and B. A bioluminescent fish (apex)