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MMLU-Pro / 3035 / A biology student from Nebraska, vacationing at a Virginia beach, observes that…

Problem

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question

A biology student from Nebraska, vacationing at a Virginia beach, observes that the level of activity of a fiddler crab changes with the cycle of the tides. When he brings some crabs back with him to Nebraska, he notices that a similar activity cycle is shown, yet there are no ocean beaches for miles. Explain.

category

biology

options

  1. The level of activity is influenced by the ocean tides only
  2. The activity cycle is a genetic trait that persists regardless of the crabs' habitat
  3. The crabs' internal biological clocks are set to the tidal patterns they experienced in Virginia and continue on the same cycle
  4. Changes in barometric pressure in Nebraska are influencing the crabs' activity levels
  5. The level of activity is regulated by the crab's diet
  6. The crucial determinant of the level of activity of the crab is not the presence of the tides, but the gravitational pull of the moon
  7. The crabs are responding to the light cycles of day and night rather than the tides
  8. The crabs have adapted to a freshwater rhythmic cycle that mimics ocean tides
  9. The crabs are maintaining their Virginia activity schedule out of habit
  10. The level of activity is being influenced by the temperature fluctuations in their new environment

src

stemez-Biology

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