Allopatric Speciation Typically Occurs in Two Stages

question 44

Multiple Choice

Allopatric speciation typically occurs in two stages. The first stage is ____ of two populations and the second stage is ____.

• A) geographic separation; reproductive isolation
• B) natural selection; geographic separation
• C) mutation; reproductive isolation
• D) reproductive isolation; geographic separation
• E) genetic drift; reproductive isolation

---

Definitions:

Sociology

The study of the development, structure, and functioning of human society, as well as the systematic study of social problems.

Human Body

The physical structure of a human being, considered within the study of biology, medicine, and, in certain contexts, sociology and culture.

Median Income

A statistical measure representing the middle income in a range of incomes of a population, where half of the population earns more, and half earns less.

Age Cohort

A group of individuals who share a similar age, allowing for comparisons and analyses of generational impacts and life cycle events.