Prophase is the first phase of mitosis, this when the nuclear envelope breaks down and the nucleuse disappears. Hope I was able to help. :)
Answer:
more recently they shared a common ancestor
The definition of a Hero is actually more determined by personal and cultural factors B.
It would be hard to say that what a hero is is something that is understood universally given the fact that we have such a diversity in cultures. People often don't consider that what might be considered a heroic act in one culture, doesn't necessarily count as a heroic act in another culture.
The role is speeding up chemical reactions