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.
<span>Base from the graph the number
of degrees of longitude that separate new York and reno Nevada is 120 – 75 = 45
degrees of longitude. The time difference can be calculated by dividing it by
15 degree because for every 15 degrees there is 1 hr difference. 45 / 15 = 3 hr
difference</span>
