A Large Population of Animals Is Split in Two by a Physical

question 32

Multiple Choice

A large population of animals is split in two by a physical barrier.Over time,the genetic makeup of the two resulting populations becomes more and more different,until each population becomes a separate species.This is an example of

• A) sympatric speciation.
• B) allopatric speciation.
• C) genetic drift.
• D) natural selection.

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Definitions:

Independent Variable

The variable that is manipulated in an experiment to test its effects on the dependent variable.

Review Session

A meeting or period devoted to recapping and discussing content previously covered, often used as preparation for exams or to ensure understanding.

Independent Variable

In an experiment, this is the element that is intentionally varied or adjusted by the scientist to determine its influence on the dependent variable.

Dependent Variable

The variable in an experiment that is expected to change as a result of manipulations of the independent variable.