BIOL 100 UNLV LAB MIDTERM ACTUAL 2025/2026

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BIOL 100 UNLV LAB MIDTERM ACTUAL 2025/2026 QUESTIONS AND 100% CORRECT ANSWERS Scientific Method - Answer -Observe -> hypothesize -> test -> interpret Hypothesis - Answer -Provides a plausible (although tentative) explanation for what is being observed Experimental group - Answer -In an experiment, the group that is exposed to the treatment Control group - Answer -In an experiment, the group that is not exposed to the treatment; contrasts with the experimental group and serves as a comparison for evaluating the effect of the treatment If the control group is constant, is there a problem with the experiment? - Answer -If it is constant, it means that the experimental group is truly affecting the results Potential control variables in lab 1 - Answer -Height of the step, tempo of the song Independent variable - Answer -Variable not affected by the other variables Dependent variable - Answer -The outcome factor; the variable that may change in response to manipulations of the independent variable Need assistance on Online classes, Exams & Assignments? Reach out for instant help!! Full Course Assistance, Plagiarism-free Essay Writing, Research Paper, Dissertation, Discussion Posts, etc…. Confidential & Secure services. Tutors are available for all subjects! Email now at: tutorjean01@gmail.com Experimental error - Answer -inaccuracy due to procedural faults, could have given actual drug rather than placebo Direct observation - Answer -observing behavior as it occurs, actual measurements Parts of a microscope - Answer -Ocular lenses, objective lenses, stage, mechanical stage, coarse adjustment knob, fine adjustment knob, rheostat (light control), iris diaphragm lever (controls the amount of light entering condenser), condenser Making a wetmount - Answer -1. Add a drop of water to a slide and place specimen in water 2. Place the edge of coverslip on the slide so it touches the edge of the water 3. Slowly lower the coverslip to prevent formation and trapping of air bubbles 4. Remove excess water from slide using lens paper Bacteria - Answer -- Single-called organisms with simple cell structures, will appear very small under magnification - Look for groups of tiny cells with rod, spiral, or spherical shapes - Cocci (spherical) - Bacilli (rods) - Spirilla (spirals) Protista - Answer -- Active, single-called organism - Complex cells with small structures (organelles) within them - Present in pond water - Have green pigments - Paramecium - Amoeba - Euglena - Volvax - Domain Eukarya Need assistance on Online classes, Exams & Assignments? Reach out for instant help!! Full Course Assistance, Plagiarism-free Essay Writing, Research Paper, Dissertation, Discussion Posts, etc…. Confidential & Secure services. Tutors are available for all subjects! Email now at: tutorjean01@gmail.com