BIO Lab

Bio lab

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Biology I Final Exam Practice| 185 Questions| With Complete Solutions
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A pair of shared valence electrons is referred to as a(n): a. covalent bond b. hydrophobic effect c. van der Waals interaction d. ionic bond correct answer: a. covalent bond For an atom that is NOT an ion, which of the following must be TRUE? a. the number of electrons equals the number of protons b. the number of protons equals the number of neutrons c. the number of electrons equals the number of neutrons correct answer: a. the number of electrons equals the number of protons As...
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Biology Final Practice Exam| 150 questions| with complete solutions
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Species evenness is an important measure of diversity in an ecosystem. T/F correct answer: true When a tapeworm steals nutrients from the gut of a mammalian host, that symbiosis is called: intraspecific competition. parasitism. commensalism. mutualism. predation. correct answer: parasitism Based upon the age structure diagram, you expect the American population to: grow because all of the age classes have roughly equal proportions of people. grow then shrink because many of th...
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Biology - Practice Final Exam | 226 Questions | With Complete Solutions
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Asexual reproduction requires ____ individuals correct answer: one With the exception of identical twins, siblings who have the same two biological parents are likely to look similar, but not identical because they have correct answer: a similar but not identical combination of genes. The following statement regarding the function of mitosis is false correct answer: Mitosis allows organisms to generate genetic diversity. The following statement is false correct answer: Gametes are m...
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Biology Lab: Final Exam | 150 Questions | With Complete Solutions
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What form, the larvae or the adult, disperses offspring in flying insects? How is this a benefit? correct answer: The adult Which pattern of development do the flat worms, rotifers, and roundworms (animals included in this laboratory) have? correct answer: Protostome Explain the expression sessile filter feeder. correct answer: A sessile filter feeder stays in one place and filters its food from the water. Name two possible advantages of spicules to a sponge correct answer: St...
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Biology Lab Practical FINAL| 191 Questions| With Complete Solutions
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What information can a phylogenetic tree tell you? correct answer: a visual representation of the relationship between different organisms, showing the path through evolutionary time from a common ancestor to different descendants. What is the basis for similarity differences between amino acid correct answer: All amino acids have the same basic structure, At the "center" of each amino acid is a carbon called the α carbon and attached to it are four groups - a hydrogen, an α- carboxyl g...
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Practical Lab Exam-Biology 184- Questions With Complete Solutions
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what are the basic components of an annotated bibliography? correct answer: citation, summary, evaluation, and assessment of relevance to research. what is a dissecting microscope and what is it used for? correct answer: observes large, relatively opaque objects. Can either use reflective light (light form above) or transmitted light (light from below). what is a compound microscope and what is it used for? correct answer: usually uses transmitted light, observes fine details in small s...
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Biology Lab Final Practical| 125 Questions| With Complete Solutions
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If there is a fire drill, what is the first course of action? correct answer: Turn off the gas. Listen to instructions. Glasses or contact lenses in the lab? Why? correct answer: Glasses. Can't wear contact lenses because if a chemical gets in your eye, the contacts can absorb it. During the experiment you have accidently got some liquid into your eye. What are you going to do? correct answer: Rinse eye out in the sink that is meant for rinsing eye out. If there is broken glassware,...
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Biology FINAL EXAM PRACTICE (BIOLOGY SCA STEVENS) QUESTIONS WITH COMPLETE SOLUTIONS
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COARSE ADJUSTMENT KNOB correct answer: used with the low power objective CONDENSER correct answer: controls the amount of light FINE ADJUSTMENT KNOB correct answer: used with the high power objective OCULAR LENS correct answer: eyepiece TUBE correct answer: holds the nosepiece mass correct answer: amount of matter in an object volume correct answer: amount of space an object takes up water displacement correct answer: used to measure the volume of an irregular object...
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Practice Lab final exam| questions| with complete solutions
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When teaching a patient about wound healing, which of the following should the nurse tell the patient? a) fat tissue heals more readily because there is less vascularization b) chronic wounds heal more efficiently in a dry, open environment, so leave them open to air when possible c) long-term steroid therapy diminishes the inflammatory response and speeds wound healing d) inadequate nutrition delays wound healing and increases risk for infection. correct answer: d) a package of gauze ...
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Biology Lab, Final Exam Questions With Complete Solutions
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Why did the catalase function level off when different hydrogen peroxide concentrations were tested? correct answer: At some point, all the catalase in solution was catalyzing reactions, so even if the hydrogen peroxide concentration was increased, the rate of the reaction could not increase any more. How much slower would hydrogen peroxide likely be decomposed if catalase was not available in cells? correct answer: 1,000,000 times At which temperatures did catalase function somewhat, bu...
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