निकट संबंधी, रूपात्मक रूप से समान, लेकिन जनन रूप से पृथक (reproductively isolated) सह-स्थानिक (sympatric) समष्टियों को निम्नलिखित में से क्या कहा जाता है?

Which evolutionary process leads to the formation of new species due to physical or geographic barriers separating populations?

Species occupying different, geographically isolated areas are known as:

The geographical or physical isolation of populations due to extrinsic barriers leading to speciation is called: