polyploidy plants are sterile, usually completely seedless, but may have vestiges of seeds (like the kind of bananas we eat do). Polyploidy plants also usually produce much larger plants than their aneuploidy counterparts do. Bigger fruits are more marketable than smaller ones.
Source from: https://answers.yahoo.com/question/index?qid=20100117182433AAx7K1t
A snake is a carnivore so it would be C
The medium in which the wave travels