Question

Populations are said to be allopatric when

• A. They are physically isolated by natural barriers
• B. They are sharing the same area but cannot interbreed
• C. They live together and breed freely to produce viable offspring
• D. They are isolated but often come together for breeding

Answer 1

The correct option is A They are physically isolated by natural barriers

When two population of a species occupy different geographical areas, the species is said to be allopatric. Allopatric speciation results when the population is separated by geographical barriers also called natural barriers. These species have undergone mutation suitable to that particular area and cannot inter-breed. The natural barriers include mountains, water bodies, etc. Thus the correct answer is option A.