You Place a Coleoptile in Unidirectional Light and Then Immediately

question 55

Multiple Choice

You place a coleoptile in unidirectional light and then immediately cover the tip. Which of the following will happen?

• A) The coleoptile will bend toward the light.
• B) The coleoptile will not bend.
• C) The coleoptile will bend away from the light.
• D) The coleoptile will die.
• E) The coleoptile will grow in a spiral pattern.

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Definitions:

Cladogram

A diagram that depicts the evolutionary relationships among groups of organisms based on shared characteristics derived from a common ancestor.

Shared Derived Trait

A characteristic that is present in an ancestral species and is shared exclusively by its evolutionary descendants.

HMS Beagle

A British Royal Navy ship on which Charles Darwin made his famous voyage, providing key observations that led to the development of his theory of natural selection.

Darwin

Charles Darwin, a 19th-century naturalist best known for his contributions to the theory of evolution through natural selection.