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BIOL1011K, Introduction to Biology Mid-Term Exam Study Guide Units 1-4 Use the following list of topics to prepare for the final examination. The topics listed below coincide with the textbook’s chapters. Be familiar with: 1. Introduction to Biology a.The Levels of Organization Organelles—cells—tissues—organs—organ system—organism—population—community—ecosystem—biosphereAtoms, molecules (macromolecules), organelles, cells (prokaryotes / eukaryotes), tissues, organs, organ systems, organisms, population, community, ecosystem, biosphereb.The Characteristics of Living Things -Composed of one or more cell.- Reproduces using DNA.- Obtains energy from their and environment. (support metabolism)- Senses their environment and responds towards it.- maintains constant homeostasis. (internal environment)- Can evolve as groupsi.Properties of Life- order, sensitivity or response to stimuli, reproduction, adaptation, growth and development, regulation, homeostasis, energy processingii.Prokaryotes-a unicellular organism that lacks a nucleus or any other membrane-bound organelle iii.vs. Eukaryotes- an organism with cells that have nuclei and membrane-bound organelles -Prokaryotes: single celled organisms, lack organelles surrounded by a membrane, do not have nuclei surrounded by nuclear membranes-Eukaryotes: have membrane-bound organelles and nucleic.The Process of Science i.Experimental design (the role of a control)- A part of the experiment that does not change.A control is used to establish a baseline to compare the results of the main experiment to.Having a control group rules out any environmental variables, such as temperature and humidity, from affecting the conclusion of the experiment. -does not changeii.Definition of a theory- a thoroughly tested and confirmed explanation for observations or phenomena.A scientific theory is a generally accepted, thoroughly tested and confirmedexplanation for a set of observations or phenomenaiii.Definition of a hypothesis- a hypothesis is a suggested explanation that canbe tested. and what make a hypothesis valid-A hypothesis must be testableto ensure that it is valid. -a suggested explanation for an event, which can be tested. -For a hypothesis to be considered valid, it must make a prediction that scientists can test using a repeatable experiment1BIOL 1011K MIDTERM STUDY GUIDE PARTIAL ANSWERED
d.Taxonomy -the branch of science concerned with classification, especially of organisms, systematics.i.Know the three domains- eukara-contains organisms that have cells with nuclei. Entamoebae, slime molds, animals, fungi, ciliates, flagellates, trichomonads, microsporidia, & diplomonads-eukarya: organisms that have cells with nuclei. It includes the kingdoms of fungi, plants, animals, and several kingdoms of protists.