All of the above are correct
Answer:
The true statement is - Sympatric speciation only occurs in areas where there is local variation in environmental resources
Explanation:
- Sympatric speciation means the evolution of new species from an ancestor species which are occupying in the same area and no geographical barrier takes place.
- Overlapping of ranges takes place to the organism and old and new species are living i the same geographical region.
- A dam diving a fish population could lead to allopatric speciation where geographical barrier causes formation of new species which are completely different from their ancestor species.
The ohio river is the answer
The influence of U.S entertainment and news sources, the primary reason is because Canada’s media covers the US intently, every corner of it and the US media covers all about Canada. They don’t cover it and the news media doesn’t talk about Canada on their newscasts. We know everything that’s happening in the US whereas the US population doesn’t have access to news about Canada. No US cable or satellite feeds deals with Canada.
