A Short-Day Plant Will Flower Only When

question 78

Multiple Choice

A short-day plant will flower only when

• A) days are shorter than nights.
• B) days are shorter than a certain critical value.
• C) nights are shorter than a certain critical value.
• D) nights are longer than a certain critical value.
• E) days and nights are of equal length.

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Definitions:

Developmental Disabilities

A diverse group of chronic conditions that are due to mental or physical impairments that arise before adulthood.

Caffeine

A stimulant commonly found in coffee, tea, and other beverages, known to affect central nervous system activity.

Tobacco

A plant whose leaves are harvested and processed for smoking, chewing, or snuffing, containing the addictive substance nicotine.

Alcohol

A chemical compound, specifically ethanol in the context of beverages, which is consumed and can alter consciousness or behavior.