MTTC Integrated Science (Secondary) Questions and Anwers 2024

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.