Biology 1406 exam 1 review Rated 100% Correct!!

Properties of Life - -Order -Sensitivity / Stimuli -Reproduction -Growth & Development -Homeostasis -Regulation -Energy Processing Taxonomy - Domain- Kingdom - Phylum- Class- Order- Family- Genus- Species Natural selection evidence - -adaptation -variable traits - survival of the fittest -mechanism of heredity -artificial selection -fossil records -comparative anatomy -molecular evidence Controlled Experiment - an experimental groups is compared with a control group Technology - apply scientific knowledge for some specific purpose Covalent bonds - share electrons Ionic bonds - attraction between an anion and a cationHydrogen bonds - weak attraction between the partially negative oxygen of one water molecule and the partially positive hydrogen of a different water molecule Polar - Share unequally Nonpolar - share equally Hydrophobic - don't like water Hydrophillic - water lover Orbital - where electrons is found 90% of the time Valence - the outer most shell controls chemical reactions Electronegativity - an atom's attraction for the electrons in a covalent bond Top Four Elements Needed for Life - -Oxygen -Nitrogen -Hydrogen -Carbon If proton change - Different element if electron change - is a ion if neutron change - is a isotope