How Was the Mechanism of Sympatric Speciation Among Hemp Nettles

question 16

Multiple Choice

How was the mechanism of sympatric speciation among hemp nettles in nature verified experimentally?

• A) By simply creating unique hybrids under laboratory conditions
• B) By producing hybrids that were 98% fertile under laboratory conditions
• C) By producing experimental hybrids that could reproduce successfully with both parent species
• D) By producing experimental hybrids that formed fertile offspring with the naturally occurring hybrid
• E) By creating hybrids that reproduced through the F ₄ generation before dying from hybrid inviability

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Definitions:

Cognitive Appraisal

The process of evaluating a situation in terms of its relevance to one's well-being and determining the appropriate reaction.

Physiological Arousal

Refers to the physical responses of the body, such as increased heart rate and sweating, that accompany emotions and cognitive states.

Emotional Preference

A term indicating an individual's tendency to favor decisions or reactions based on emotions rather than rational analysis.

Robert Zajonc

A psychologist known for his work on the mere-exposure effect and social facilitation, focusing on the interplay between feeling and thinking.