Biology 101 Exam 1 NOVA Prof. Peglar Questions With Verified Solutions

Biology 101 Exam 1 NOVA Prof. Peglar Questions With Verified Solutions Biology - answerthe science of life Evolution - answerthe process of change that has transformed life on Earth Levels of Biological Organization - answer-Biosphere -Ecosystems -Communities -Populations -Organisms -Organ & Organ Systems -Tissues -Cells -Organelles -Molecules Population - answera group of members of the same species that are inter-mating and producing viable offspring (can reproduce again) Communities - answerpopulation living together, same area Ecosystem - answercommunities interacting with each other Biosphere - answerorganized ecosystems All organisms on the same level are.. - answerrelated Eukaryotic Cells - answercontains membrane-enclosed organelles Prokaryotic Cells - answerlack nucleus or other membrane- enclosed organelles, generally smaller Classifications - answer-Domain (Eukaryotes) -Kingdom: Plant, Fungi, Animals, Protist -Phylum -Class -Order -Family -Genus -Species Natural Variation - answeradaption: differences but same species ex: white beetles are no longer made because they were all eaten by birds, only black beetles left Organisms are composed of... - answermatter: anything that takes up space and has mass Matter is made up of... - answerelements: a substance that can not be broken down Compound - answersubstance consisting of two or more different elements Essential Elements - answerorganisms need to live a healthy life/reproduce Atom - answersmallest unit of matter Atoms consist of... - answersubatomic particles: neutrons, protons, & electrons Dalton - answerunit of measure for particles Atomic Number - answernumber of protons and neutrons Isotope - answeratoms with more neutrons than other atoms Valence Electrons - answerthe outermost she