ANATOMY

Detailed explanation-1: -Allopatric speciation (1) occurs when a species separates into two separate groups which are isolated from one another. A physical barrier, such as a mountain range or a waterway, makes it impossible for them to breed with one another.

Detailed explanation-2: -Explanation: Behavioral isolation is a type of pre-zygotic barrier to reproduction that isolates species through different mating rituals.

Detailed explanation-3: -Geographic isolation occurs when two populations are separated by geographic barriers such as rivers, mountains, or bodies of water.

Detailed explanation-4: -Behavioral isolation occurs when mismatches in mating traits (signals and/or preferences) prevent mating between two species/populations.

Detailed explanation-5: -Barriers to Reproduction These include temporal isolation, ecological isolation, behavioral isolation, and mechanical isolation.