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Intro to biology Mr. Espinosa Honors Academy Biology • Biology is the study of life • Biology explores life from the global to the microscopic. • All of life as we know it is found within the biosphere (planet earth) • The biosphere contains all ecosystems (the living and non-living components of all systems of the biosphere) • In biology students study the following topics – Cells that all living things are made of – DNA / Genes which are molecules inside cells that carry the code of life – Humans, genetics and society • Stem cells, cloning, GMO’s, current technology, genetic disorders, mutations – History of Life and how it continues to change as the planet changes – Ecology / Conservation • Science is a Latin verb meaning “to know” • Science is a way to answer questions about the natural world • At the heart of science is inquiry – that is to answer questions about what people observe in nature and actively seek answers • Scientists group life into three domains • Domains of Life – Archaea Consist of prokaryotic single cells – Bacteria – Eukarya (living things made of cells with a nucleus) • • • • Kingdom Protista (amoeba, algae, paramecium, euglena) Kingdom Fungia (yeast, mushrooms, molds) ~ decomposers Kingdom Plantae (plants) Kingdom Animalia (animals) • • • • • • • Evidence in science What makes a Hypothesis scientific? The limitations of science Theories in science Models Communication in science Science, technology, and society