How Cold Are the Overwintering Sites in Mexico? (Back to Lesson) National Science Education Standards Inquiry Science investigations involve asking and answering a question and comparing that to what scientists already know about the world. (K-4) 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) 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)   Copyright 2006 Journey North. All Rights Reserved. Please send all questions, comments, and suggestions to our feedback form