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BIO 100 FIRST EXAM 2025 QUESTIONS AND ANSWERS Atoms, molecules - ....ANSWER ...-Atoms- unit of matter that cannot be further broken down Molecles- the chemical components of cells Cell - ....ANSWER ...-smallest living unit Tissue - ....ANSWER ...-made of similar types of cells that work together Organ Systems - ....ANSWER ...-made of different tissue types working together Organism - ....ANSWER ...-individual, with organs and organ systems Population - ....ANSWER ...-All individuals of a particular type (species) interacting in a particular place Community - ....ANSWER ...-All the different type (species of organisms that may interact in a particular place Ecosystem - ....ANSWER ...-All different type of of organisms, plus the non-living (abiotic) components necessary for existence Biosphere - ....ANSWER ...-The portions of atmosphere, ocean, and land where life exists on Earth ...©️ 2025, ALL RIGHTS RESERVED 1