Question

Populations are said to be sympatric when two populations

• A. Are isolated but occasionally come together to interbreed
• B. Share the same environment but can not interbreed
• C. Live together and freely interbreed to produce sterile offspring
• D. Are physically isolated by natural barriers

Answer 1

The correct option is B Share the same environment but can not interbreed

Sympatric speciation is the process through which new species evolve from a single ancestral species, while inhabiting the same geographic region. Two species or populations are considered sympatric when they exist in the same geographic area and thus regularly encounter one another. An initially interbreeding population that splits into two or more distinct species sharing a common range. In sympatric speciation, there is no geographic constraint to interbreeding. Sympatric speciation occurs if interactions are so limited between these groups that mating no longer occurs between them.