Mttc Integrated Science Secondary Final Exam Test

Mttc Integrated Science Secondary Final Exam Test Graticule slide - CORRECT ANSWER-marked with grid line, useful for counting or estimating a quantity Preparing acid solutions - CORRECT ANSWER-Always add acid to 2/3 water, then add rest of water # of Animal species - CORRECT ANSWER-over 1 million species and about 30 divisions # of insects - CORRECT ANSWER-800,000 species, half of animal kingdom Characteristics of animal kingdom - CORRECT ANSWER-muliticellular, heterotrophic, reproduce sexually, do not have cell walls or chloroplasts, can move at some stage of life, can rapidly respond to environment due to specialized tissues like nerve and muscle Heterotrophic - CORRECT ANSWER-method of getting energy by eating food that has energy releasing substances Mendel - CORRECT ANSWER-Father of genetics, experimented with pea plants to observe inherited traits McClintock - CORRECT ANSWER-Created the first genetic map for maize, demonstrated recombination, how transposition flips the switch for traits. Watson and Crick - CORRECT ANSWER-Discovered the structure of DNA double helix and helped explain how DNA replicates. Leeuwenhoek - CORRECT ANSWER-First to observe single celled organisms with homemade magnifying glass. Observed bacteria, yeast, plants and other microscopic organisms. Linnaeus - CORRECT ANSWER-Created a method of classifying plants and animals, a way to organize and study large amounts of data, called Linnaean taxonomy. Darwin - CORRECT ANSWER-natural selection, survival of the fittest by observing finches. Also discovered fossils, noted stratification, dissected marine animals and interacted with indigenous peoples. Scientific fact - CORRECT ANSWER-an objective and verifiable observation Scientific theory - CORRECT ANSWER-greater body of accepted knowledge, principles, relationships that might explain a fact. Hypothesis - CORRECT ANSWER-Educated guess that is not yet proven. Used to predict the outcome of an experiment Law - CORRECT ANSWER-An explanation of events that always leads to the same outcome. Model - CORRECT ANSWER-Used to explain something on a smaller scale or in simpler terms. Scientific Method - CORRECT ANSWER-Identify a problem Formulate a hypothesis Conduct experiments Observe results Draw conclusions Peer review Random errors in data - CORRECT ANSWER-Sometimes called noise, wildly different from the rest of the data. Does not affect average Systematic errors in data - CORRECT ANSWER-Shows up consistently across a data set, may be the result of a flaw in experimental design. Affects average, also known as bias. Mean - CORRECT ANSWER-Average Median - CORRECT ANSWER-Middle number Mode - CORRECT ANSWER-Value that appears most frequently Range - CORRECT ANSWER-Difference between highest and lowest numbers Standard Deviation - CORRECT ANSWER-How far from the mean is from a single data likely to be, measures dispersion of data set Ampere (A) - CORRECT ANSWER-SI unit used to measure electric current Kelvin (K) - CORRECT ANSWER-SI unit used to measure thermodynamic temperature Candela (cd) - CORRECT ANSWER-SI unit used to measure luminous intensity