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Question

Light is considered the most potent zeitgeber for:

Options

Choose one · Correct answer highlighted

Explanation

Answer: C) Circadian rhythm. For PSS-Sec-E-Sensory biology, remember the key idea and you’ll land on this option; the distractors usually swap cause and effect or confuse similar terms. Avoid: A) Phototropism; B) Vernalization; D) Shade avoidance. Name the process first, then pick the option that describes it — don’t reverse cause and effect.