Biology Final Review (UCF Yeargain) questions and answers

Biology Final Review (UCF |\ |\ |\ |\




Yeargain) questions and answers |\ |\ |\




Which of the following statements about hypotheses is false? - CORRECT
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ANSWERS ✔✔A hypothesis is a proven fact |\ |\ |\ |\ |\ |\




Which of the following examples meets the criteria of a scientific theory? -
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CORRECT ANSWERS ✔✔Many years of research supporting the Theory of
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Evolution


Hypotheses must have at least one predictive hypothesis and one null hypothesis.
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- CORRECT ANSWERS ✔✔True
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Which of the following is an example of a Null Hypothesis? - CORRECT ANSWERS
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✔✔There is no difference in jumping height between dolphins in the Atlantic
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Ocean and |\




dolphins in the Pacific Ocean |\ |\ |\ |\




Which of the above examples is a generic Predictive Hypothesis - CORRECT
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ANSWERS ✔✔Pet snakes and wild snakes show differences in the number of
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mice consumed each year.
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What is the optimal water depth for producing bubbles? - CORRECT ANSWERS
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✔✔10 m |\

,At which depth did plants produce the least amount of bubbles? - CORRECT
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ANSWERS ✔✔35 m |\ |\




List the taxonomic levels of organization from most inclusive to least inclusive -
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CORRECT ANSWERS ✔✔Domain, Kingdom, Phylum, Class, Order, Family, Genus,
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Species


Which of the following taxonomic levels would include species that are the most
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closely related? - CORRECT ANSWERS ✔✔Genus
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What are the four essential elements of Life? - CORRECT ANSWERS
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✔✔Hydrogen, Oxygen, Carbon, & Nitrogen |\ |\ |\ |\




What is the mass number of an atom? - CORRECT ANSWERS ✔✔Number of
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protons and neutrons |\ |\




The number of ______ differs in isotopes. - CORRECT ANSWERS ✔✔neutrons
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An electron in which shell will have the highest potential energy? - CORRECT
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ANSWERS ✔✔3rd shell |\ |\




How many electrons will you find in the 3rd shell of an Aluminum (Al) atom (atomic
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# = 13) - CORRECT ANSWERS ✔✔3
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What does it mean for an atom to have a full valence shell? How will it interact
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with other atoms? - CORRECT ANSWERS ✔✔no bonds will form
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,What is the result of an ionic bond between Na & Cl? - CORRECT ANSWERS
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✔✔Both b & d are correct (b. Two molecules that are attracted to each other due
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to resulting charges, d. Transferring of electrons)
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9. What characteristics below are those of a hydrogen bond? - CORRECT
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ANSWERS ✔✔all of the above |\ |\ |\ |\




Which of the following is the most polar molecule? - CORRECT ANSWERS ✔✔HF
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Magnesium has an atomic number of 25 and a mass number of 55. Which of the
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following is true? - CORRECT ANSWERS ✔✔All
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Lithium has a valence number of 1 and often donates that electron to another
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atom. The atom that received the electron would now be a(n): - CORRECT
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ANSWERS ✔✔Anion |\




In the example above, after it donates an electron, Lithium is a(n): - CORRECT
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ANSWERS ✔✔Cation |\




What happens if an atom gains or loses a proton? - CORRECT ANSWERS ✔✔It is a
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different atom.
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Ice is _____ dense than water because the hydrogen bonds are _______ in ice than
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in
water. - CORRECT ANSWERS ✔✔Less dense, more ordered
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, Water molecules in ice are ________ than water molecules in liquid water -
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CORRECT ANSWERS ✔✔More spread out |\ |\ |\ |\




Which of the following would you predict to dissolve best in water? - CORRECT
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ANSWERS ✔✔NaCl |\




4. Which of the following is most hydrophilic? - CORRECT ANSWERS ✔✔CH3OH
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What does pH measure - CORRECT ANSWERS ✔✔H+ concentration
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Which property of water makes it essential to life on earth? - CORRECT ANSWERS
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✔✔It forms hydrogen bonds with other water molecules
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Which of the following is an acid? - CORRECT ANSWERS ✔✔[H+] = 1 x 10-6
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8. Which of the following represents the hydroxide ion concentration of pure
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water? - CORRECT ANSWERS ✔✔b. [H+] = 1 x 10-7
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If the pH of an aqueous solution is 5, what is the pOH? - CORRECT ANSWERS
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✔✔9


Which solution has the greatest concentration of [H+]? - CORRECT ANSWERS
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✔✔1 x 10-1 |\ |\