Darwin's argument tells us that species develop their traits through natural selection due to competition, survival and reproduction. Diversification of species is an important part to make his argument valid because diversification suggest extinction of specie if it doesn't survive.
They are complete sentences. Both have an independent and dependent clause.
Its D cause,key words''practices,belifes''. Hope it helps.
Answer:
This is most likely an expert opinion, if she has lots of experience in her field. Notice the word "believes", automatically making it an opinion.
Explanation: