Essential knowledge 2.D.3:

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Presentation transcript:

Essential knowledge 2.D.3: Biological systems are affected by disruptions to their dynamic homeostasis. http://www.youtube.com/watch?v=s8jhJXgC-bk

a. Disruptions at the molecular and cellular levels affect the health of the organism. To foster student understanding of this concept, instructors can choose an illustrative example such as: • Physiological responses to toxic substances • Dehydration • Immunological responses to pathogens, toxins and allergens b. Disruptions to ecosystems impact the dynamic homeostasis or balance of the ecosystem. • Invasive and/or eruptive species • Human impact • Hurricanes, floods, earthquakes, volcanoes, fires • Water limitation • Salination

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