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Fall Migration: Is it Warm Enough to Fly?

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National Science Education Standards
  • Weather changes from day to day and over the seasons.

  • The behavior of individual organisms is influenced by internal cues (such as hunger) and by external cues (such as a change in the environment).

  • Regulation of an organism's internal environment involves sensing the internal environment and changing physiological activities to keep conditions within range required to survive.


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