A mutation in a plant that could cause negative outcomes could be the plant has less leaves, or isn't hardy enough, like other plants. It would die. A plant from an area like Chernobyl, that has been affected by radiation could poison other animals, or pass that gene along, and ultimately kill that strand of plant.
The answer would be C valleys formed by a glaciers.
D. I just took the test on USA Test prep so ya, remember to mark this the brainlyest answer
It is much darker 1000 meters deep and photosynthesis most likely can't occur, the fishes there also have different abilities than the ones higher up in order to survive, also it is probably a harder to swim because of the increased pressure
