1. Plant cells have a cellulose cell wall
2. Plant cells have a vacuole containing cell sap
3. Plant cells have chloroplast
Answer - Speciation
Reasoning - Pretty much what has happen was the two species has evolved over the course of evolution if you want to put it that way why the are incapable of breeding.
To prevent the risk of contamination
Early whale teeth, then early whale-type ear bones; skulls becoming long and narrow; shorter legs with big feet
I think the answer is .15