Biology 101 (Exam 1 Review) Questions & Answers(SCORED A+)

What are the four major themes of biology? - ANSWERemergent properties, unity and diversity, evolution by natural selection, scientific processes Emergent properties - ANSWERthe whole is more than the sum of its parts Unity and Diversity - ANSWERall life shares characteristics by is different in many ways Evolution by natural selection - ANSWERDarwin's Theory of Evolution by Natural Selection. More individuals are produced each generation that can survive. Phenotypic variation exists among individuals and the variation is heritable. Those individuals with heritable traits better suited to the environment will survive. Scientific processes - ANSWER What is "alive"? - ANSWERresponse to stimuli, reproduction, grows and develops, evolves, composed of cells, regulate their metabolic processes Hypothesis vs Theory - ANSWER(hypothesis) can be supported but never proven true; (theory) a well-tested and widely accepted view that scientific community agrees best explains certain observable facts Observational Studies - ANSWERonly watching, not changing Correlational studies - ANSWERthings are related, one causes the other Controlled experiments - ANSWERstudy in which some subjects (experimental subjects) are assigned to experience a specific experimental condition, while similar subjects (control subjects) do not experience the experimental condition Sample size - ANSWERit is the group of things you are experimenting on, it is suppose to represent the population ( but not be too big )