Human Biology Concepts and Current Issues Johnson 2014 A GUARANTEED

Johnson Human Biology Concepts and Current Issues Study Guide 2014 | A+ Rated Study Resource Biology - answer - The branch of science that studies the natural world within the context of life. Homeostasis - answer - The process by which living organisms maintain a fairly constant internal environment despite changes in the external environment. Molecules of life - answer - Include water, proteins, lipids, nucleic acids, carbohydrates. Cells - answer - All living things are made up of at least one cell. Metabolism - answer - Cells maintain life through the breakdown of molecules and energy by chemical and physical processes. Organism classification - answer - Criteria include the organism's life cycle, structure or body plan, and mode of nutrition, excluding means of transportation. Kingdom - answer - A major taxonomic rank in biology, with Animalia being an example. Domain Eukarya - answer - Contains multicellular photosynthesizers in the Plantae kingdom. Taxa - answer - Subgroups used in classification, with humans falling under Mammals. Evolutionary advantage of bipedalism - answer - Frees the hands for carrying objects. Level of organization - answer - From least to most complex: cells, tissues, organs, organ systems, organism. Tissues - answer - Group of cells with a similar function Organs - answer - Structure composed of tissues working together Organ Systems - answer - Group of organs functioning together Organism - answer - Individual living being Atoms - answer - Smallest unit of matter Community - answer - Interacting populations in a specific area Population - answer - Group of organisms of the same species in a specific area Ecosystem - answer - Community interacting with the environment Evolutionary Change - answer - Change in genetic composition over generations Scientific Method - answer - Process to gain knowledge about the natural world Empirical - answer - Based on observation or experience Peer Review - answer - Evaluation of work by experts in the field Scientific Theory - answer - Explanation of scientific facts with reliability Control Group - answer - Group unchanged for comparison in an experiment Correlation - answer - Relationship between two variables Deductive Reasoning - answer - Drawing specific conclusions from general principles Scientific Journals - answer - Publications for scientific research Government Agency - answer - Organization established by the government Internet Address - answer - URL indicating website type Internet Regulation - answer - The Internet is less regulated than broadcast and print media. Misleading Information - answer - Anyone can post misleading 'scientific' information on the Internet. Reliability of Internet Info - answer - Internet info is generally reliable, with inaccuracies quickly corrected. Personal Interests vs. Science - answer - Individuals may post info to promote personal interests over tested ideas. Questioning Attitude - answer - Approaching new info with skepticism and seeking evidence. Graphing Data - answer - Displaying and organizing data to show connections. Graphs in Science - answer - Graphs often display data collected from scientific experiments. Scientific Knowledge Benefits - answer - Scientific knowledge helps detect problems early and correct mistakes. Antibiotic-Resistant Bacteria - answer - Overuse of antibiotics encourages the rise of resistant bacterial strains. Acceptable Experiment - answer - Testing a new cancer drug on a patient's 'incurable' cancer is acceptable. Prediction Validity - answer - Scientific predictions are validated through experimentation or observation. Theory Definition - answer - A theory is a tested hypothesis that continues to be supported. Peer Review on Internet - answer - Special-interest groups can post unreviewed info as science on the Internet. Existence of Natural World - answer - Scientific knowledge cannot prove or disprove issues beyond the natural world. Per