Organisms (belonging to the same species) may adapt in different ways to better exploit different environments or resources-- survival of the fittest. They also may evolve varied characteristics for attracting mates for reproduction. This means that different groups evolve differently. Over time, these groups or populations may become so different that they can no longer breed together -- and separate species are formed.
The answer i got was B.:Extrinsic
I hope this will help u :D
Answer:
The Persians followed a monotheistic religion called Zoroastrianism, which recognized only a single deity named Ahura Mazda. Based on the teachings of the Persian prophet Zoroaster, this was the official religion of the Persian Empire, although conquered peoples were allowed to practice their own religions. They treat them well. They allowed them to keep their religion and customs instead of forcing them to adapt to Persian ways. ... They could let people know about problems or thing they had to do.
Explanation:
They show the most important substances as it can show how they reac in a chemical and how they are able to react
