BSCI 105 Lecture Notes - Lecture 3: Experiment, Energy Transformation, Inductive Reasoning
16 Feb 2018
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Energy flow: energy conversion (ex. photosynthesis, nutrient cycling (we reuse the same nutrients) Continuity of life: inheritance, common ancestry. Regulatory mechanisms: feedback regulation (homeostasis, etc) Natural science (discovery based: observational, inductive reasoning, provides insights into patterns and principles of organization in the natural world. Experimental science (hypothesis-based: deductive reasoning testable, experimental support, hypothesis testing. Fact statement that is overwhelmingly supported by evidence (evolution, gravity, etc. ) Theory generalized model of explanation (natural selection, general relativity) Hypothesis specific prediction based on theory. Cell theory: all living things are made of cells, cells come from existing cells. Within each group, cells differ in: size, shape (bacteria: helix, sphere, rod, function. Elements / atoms: natural elements substances that cannot be broken down to other substances by chemical reactions. Differ in electronegativity the tendency of an atom to attract electrons toward itself: living organisms are mostly carbon, hydrogen, oxygen, and nitrogen (chon, chemical reactions and structures are determined by characteristics of atoms.
