Biology 151 Exam With All Correct Detailed Answers A+ Pass

Biology 151 Exam With All Correct Detailed Answers A+ Pass Biology is the study of - Answer - All living things Biology unifies what ? - Answer - Much of natural life on earth - life is constrained by the properties of chemistry and physics - science is becoming more interdisciplinary living organisms are what ? - Answer - Very complex but have order Characteristics of living things - Answer - -homeostasis - cellular organization - ordered complexity - sensitivity to environment - growth, development, and reproduction - Energy utilization -Evolutionary adaptation Living systems show what ? - Answer - Hierarchical organism -cellular level - organismal level - level beyond organismal Homeostasis is what ? - Answer - Maintenance of internal conditions in boundary range. Living organisms on its own - Answer - Cell-tissue-organs-organ system- organism Living organisms amongst other living things - Answer - Population- community- ecosystems- biosphere What is the most complex ecosystem? - Answer - The rain forest What is the nature of science ? - Answer - It aims to understand the natural world through observation and reasoning. Science uses what type of reasoning? - Answer - -inductive reasoning Science begins with observations therefore much of science is purely specific as possible Inductive reasoning - Answer - Beginning with specific ideas and going to general ideas Ex. Cell theory - living things derive from a cell. Deductive Reasoning - Answer - General ideas to specific ideas Ex: evolution + detailed support Ex: Endotherm- consistent Extotherm- changes Science is what ? - Answer - Hypothesis driven Quantitative data - Answer - Numerical data Qualitative data - Answer - Data from attributes and characteristics Control group - Answer - The group that does not experience the change Independent variable - Answer - The group that does experience the change dependent variable - Answer - The data that's being collected Experiment - Answer - Is used to test the hypothesis and you can only test one variable at a time - consists of a test experiment and a control experiment Basic vs applied research Scientific theory - Answer - A body of interconnected concepts that is supported by much evidence and scientific reasoning. - compared to general meaning of theory , it implies a lack of knowledge or an educated guess. What are some theories that were discussed in class? - Answer - 1. Cell theory 2. Biogenesis theory 3. Gene theory 4. Evolution theory Biogenesis theory - Answer - It's the idea that life only comes from life Evolution theory - Answer - Living things have a common ancestor and is adaptive. Gene theory - Answer - organisms contain coded information that dictates their form, function, and behavior Cell theory - Answer - All living things are made up of cells Charles Darwin - Answer - He imposed evolution through a mechanism called natural selection natural selection - Answer - - individual characteristics have an advantage - A process in which individuals that have certain inherited traits tend to survive and reproduce at higher rates than other individuals because of those traits. ex of natural selection - Answer - Fossil records- bones are connected to some today Mechanism for heredity- features are the same that helps them Comparative anatomy- comparable related structures descent with modification Photogenic tree - Answer - Scientific representation of how species are related Life is subjected to what ? - Answer - Physical and chemical laws What does all living things need to exist ? - Answer - Solar energy How does energy work - Answer - It enters in the environment in one form typically as solar energy and it is constantly transformed by organisms including humans Living things contain what ? - Answer - Heredity information or DNA also known as deoxyribonucleic acid Gene - Answer - Is a particular segment of DNA Genome - Answer - Is the entire set DNA instructions Information in DNA is used for what ? - Answer - To direct synthesis of cellular components CENTRAL DOGMA - Answer - DNA - RNA - Protein cells do what ? - Answer - Process information What is taxonmany ? - Answer - The discipline of classifying and organism