Monarch Butterflies  Field Notes from Mexico from Mr. Don Davis March 16, 2006 (Back to Lesson) National Science Education Standards Life Science The behavior of individual organisms is influenced by internal cues (such as hunger) and by external cues (such as a change in the environment). (K-4) Changes in Environments Environments are the spaces, conditions, and factors that affect an individual's and a population's ability to survive and their quality of life. (K-4) Science as a Human Endeavor Many people choose science as a career and devote their entire lives to studying it. Many people derive great pleasure from doing science. (K-4)

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