Which of the Following Statements Is NOT Correct About a Circadian

question 19

Multiple Choice

Which of the following statements is NOT correct about a circadian rhythm?

• A) These rhythms tend to persist even in the absence of daily light cues.
• B) An example is the opening of stomates in the morning and their closing at night.
• C) If plants are maintained in total darkness or total light, their circadian rhythm acts on a faster time scale.
• D) The primary usefulness of circadian rhythms seems to be to measure day-length changes so plants respond appropriately to seasonal environmental changes.

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