BIOL 115 Study Guide - Midterm Guide: Ribose, Ice Core, Saturated Fat
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2. 1 a definition of life: growth, reproduction, movement, response to stimuli, metabolism, catabolism, excretion. For unicellular one celled organisms, this is an increase in cell size prior to reproduction. For multicellular organisms, growth refers to an increase in an organism"s size as the number of cells making up the organism increases. Reproduction: the process of producing new organisms, offspring are similar, but not necessarily identical to their parents in general structure, function and properties. Homeostasis: organisms maintain a stable internal environment, even when the external environment changes. Sense and respond to stimuli: organism responds to stimuli in many ways, e. g. they may more toward a food source or away from a threatening predator. Cell theory: all living organisms are made of cells, what are cells made of, what is everything made of, everything is made of matter, matter is made of elements, elements are made of atoms. Life on earth: life on earth can be characterized as carbon-based .
