Lecture11PhysEco1 - Scales of Ecological Organization...

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Scales of Ecological Organization Organism Population Community Ecosystem Biosphere
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The study of physiological characteristics and responses of organisms with respect to a specific set of environmental factors acting as selective agents. Physiological Ecology
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Acclimation -- Reversible physiological changes that help maintain the functioning of the organism under changed environmental circumstances. Physiological Ecology
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Physiological Ecology Adaptation -- A characteristic of the phenotype that improves an organism's ability for growth, maintenance and reproduction. The characteristic is acquired through the process of past organic evolution and has a genetic basis.
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acclimation adaptation stress Time Phys. Process (growth rate) Physiological Ecology
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Homeostasis the ability to maintain a constant internal environment negative feedback -- when a system deviates from its norm, internal processes act to restore normal conditions
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Homeostasis homeothermic -- maintenance of constant body temperature poikilothermic -- body temperature regulated by environmental temperature
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Lecture11PhysEco1 - Scales of Ecological Organization...

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