There are two events,
A: the selection belongs to the specific species, or
A' : the selection does not belong to the specific species.
Structurally, DNA and RNA are nearly identical. However, there are three fundamental differences that account for the very different functions of the two molecules. RNA has a ribose sugar instead of deoxyribose sugar like DNA.
its B. Organ b/c the plants root are part of the plant
B. plastic packing
A and D are biological hazards and C is a chemical hazard
That would be death if you are referring to the human growth cycle
