Which of the Following Statements Regarding Detection of Shading in Plants

question 142

Multiple Choice

Which of the following statements regarding detection of shading in plants is NOT true?

• A)Absorption of red light causes phytochrome to shift from its active state to its inactive state.
• B)Absorption of red light causes phytochrome to shift from its inactive state to its active state.
• C)Absorption of far-red light causes phytochrome to shift from its active state to its inactive state.
• D)Absorption of red light causes a seed to germinate.
• E)Phytochrome is slowly shifted from its active state to an inactive state in the dark.

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Definitions:

Natural Selection

The process by which traits become more or less common in a population due to consistent effects upon the survival or reproduction of their bearers.

Adaptive Changes

Adjustments or modifications in organisms or populations that enhance their survival and reproductive success in a particular environment.

Natality

The rate at which individuals produce offspring; the average per capita birth rate.

Offspring

The product of reproduction, a new organism produced by one or more parents.