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UNLV Bio 189 Final Exam with complete solutions
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UNLV Bio 189 Final Exam with complete solutions
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UNLV Bio 189 Final Exam with completesolutions
What is the scientific process? - ANSWERS✔✔Observations, question, hypothesis, prediction,
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and test
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Hypothesis - ANSWERS✔✔A testable prediction, often implied by a theory
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A hypothesis is ________________ and written so that it could be found incorrect by an observation
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or experiment - ANSWERS✔✔Falsifiable
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Is this a hypothesis: cats live fish more than dogs love fish? - ANSWERS✔✔No because it is now
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testable
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Is this a hypothesis? Why?: big foot lives in north dakota - ANSWERS✔✔No because it is not
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tesable
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Is this a hypothesis: all swans are white - ANSWERS✔✔Yes because it is testable
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What are the five functional traits of all living things? - ANSWERS✔✔Grow, sense/response to
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stimuli, metabolism, homeostasis, reproduction
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The smallest unit of life - ANSWERS✔✔Cells
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The ____________ is the fundamental unit of matter - ANSWERS✔✔Atom
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Electrons - ANSWERS✔✔Negatively charged subatomic particles
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,Proton - ANSWERS✔✔A subatomic particle that has a positive charge
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Neutron - ANSWERS✔✔Subatomic particle with no charge
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An atom has the same number of... - ANSWERS✔✔Protons and electrons
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atomic number - ANSWERS✔✔the number of protons in the nucleus of an atom
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number of protons - ANSWERS✔✔atomic number
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Number of protons and neutrons - ANSWERS✔✔Atomic mass
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An elements ___________________ is calculated by adding the number of protons and number of
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neutrons - ANSWERS✔✔Atomic mass
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Isotopes - ANSWERS✔✔Atoms with the same number of protons but different numbers of
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neutrons
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Hydrogen is an example of an _______________. - ANSWERS✔✔Isotope
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non-polar covalent bond - ANSWERS✔✔equal sharing of electrons
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polar covalent bond - ANSWERS✔✔unequal sharing of electron species
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H2O is an example of a - ANSWERS✔✔Polar covalent bond
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, ionic bonds - ANSWERS✔✔formed when one or more electrons are transferred from one atom
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to another
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NaCl is an example of a - ANSWERS✔✔Ionic bond
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Why is h2O polar and CH4 nonpolar? - ANSWERS✔✔Molecular polarity determines how a
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molecule behaves
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__________ have Carbon based backbones and at least one Carbon-Hydrogen bond -
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ANSWERS✔✔Organic molecules
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____________ lack carbon-based backbones and carbon-hydrogen bonds -
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ANSWERS✔✔Inorganic molecule
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C6H12O6 is what type of molecule? - ANSWERS✔✔Organic
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CO2 is what type of molecule? - ANSWERS✔✔Inorganic
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What are the four organic molecules that compose all life? - ANSWERS✔✔Carbohydrates,
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proteins, lipids, and nucleotides
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Carbohydrates are made up of - ANSWERS✔✔Monosaccharides v v v v v v
Are carbohydrates hydrophilic or hydrophobic? - ANSWERS✔✔hydrophilic
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Monomers - ANSWERS✔✔Building blocks of polymers v v v v v
Polymers - ANSWERS✔✔Chains of monomers v v v v
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