​Two Species of Toads Have Been Successfully Interbred in a Laboratory

question 30

Multiple Choice

​Two species of toads have been successfully interbred in a laboratory but do not hybridize in nature because one species mates in summer and the other mates in the fall. This is an example of ____ isolation.

• A) ​reproductive
• B) ​ecological
• C) ​inbred
• D) ​physical
• E) ​genetic

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Definitions:

Experimental Method

A research method that tests hypotheses and establishes cause-and-effect relationships by manipulating and controlling conditions.

Control Groups

In experiments, groups whose members do not obtain the treatment, while other conditions are held constant.

Cause and Effect

The principle that an action or event will produce a certain response or outcome (effect) directly attributable to that action or event (cause).

Introspection

The examination of one's own thoughts and feelings as a way of gaining insight into one's mind and character.