Biology - • Useful bu unsatisfactory o Because it fails...

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Biology: The Study of Life Human biology This course reviews "foundation" concepts in biology to prepare you for further courses in human biology Human biology is the study of human life . . . it's structures, functions, and interelationships with other organisms Human biology is the starting point for understanding human medicine and health professions, athletics and exercise science, and other applied sciences What is Life? If this review centers on the study of human life, we must be clear on what we mean by "life" in a biological sense The approach offered in most textbooks lists "characteristics of life" Responsiveness, conductivity, growth, respiration, digestion, absorption, secretion, excretion, circulation, reproduction (please do NOT memorize this list!)
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Unformatted text preview: • Useful, bu unsatisfactory o Because it fails to define (it merely describes) and the list does not apply to all living beings Life is self-organizing • Seems to resist entropy (nature's tendency toward disorder) o Autopoiesis ("self making") refers to life's continual making of itself by means of metabolism • Metabolism —the inter-linked and ongoing chemical reactions of life; body chemistry o Anabolism —metabolic reactions that make larger molecules out of smaller ones o Catabolism —metabolic reactions that make smaller molecules out of larger ones • Vladimir Vernadsky says that life is less a thing and more a process o Vernadsky said that living organisms are simply special forms of water...
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