Visiting the Monarch Sanctuary with Dr. Lincoln Brower (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) All organisms must be able to obtain and use resources, grow, reproduce, and maintain stable internal conditions in a constantly changing external environment. (5-8) Changing 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)   Copyright 2006 Journey North. All Rights Reserved. Please send all questions, comments, and suggestions to our feedback form