Monarch Butterflies Shivering Behavior Back to Article

National Science Education Standards The behavior of individual organisms is influenced by internal cues (such as hunger) and by external cues (such as a change in the environment). An organism's behavior patterns are related to the nature of that organism's environment. All organisms must be able to obtain and use resources, grow, reproduce, and maintain stable internal conditions in a constantly changing external 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. Copyright Journey North (journeynorth.org). All Rights Reserved.