Chapter 20, Problem 15STP

Summary Introduction

To draw:

The steps of speciation in a small population

Introduction:

The speciation can be described as the process of the divergence of different species from an existing one. The speciation is completed when the two group of population of a single species develop a reproductive isolation.

Explanation of Solution

The allopatric speciation occurs when a small group of individuals are isolated from the main group, generally due to geographical separation. Below are the steps of the allopatric speciation:

1. Isolation.
2. Divergence.
3. Reproductive isolation.