Biology 121 final exam Study guides, Class notes & Summaries

Biology 121 Final Exam Questions With 100% Correct Answers.

Which of the following is not part of the scientific method? a. experimentation b. theory c. prediction d. fact e. hypothesis Correct Answer d. fact What is a hypothesis? a. the same thing as an unproven theory b. a tentative explanation that can be tested by experiments c. a verifiable observation d. a prediction that can be tested by experimentation Correct Answer b. a tentative explanation that can be tested by experiments All living organisms share five fundamental characteris...

Prokaryotes are classified as belonging to two different domains. What are the domains? Correct Answer Bacteria and Archaea Life is organized in a hierarchical fashion. Which of the following sequences correctly lists that hieracrchy from least inclusive to most inclusive? Correct Answer molecule, organelle, cell, tissue, organ, organsystem, organism, population, community, ecosystem About twenty-five of the ninety-two natural elements are known to be essential to life. Which four of these...

A molecule is composed of atoms. True or False? Correct Answer True What is the difference between a theory and a hypothesis? Correct Answer A theory is supported by all existing evidence and have never been shown to be false. A hypothesis is a proposed explanation for a set of observations that requires further evidence to be supported or discarded. All living things evolve. True or False? Correct Answer True A population is part of a community. True or False? Correct Answer True Th...

What is the hierarchy of life from largest to smallest? - Biosphere-Ecosystem-Community-PopulationOrganism-Organ system-Organ-Tissue-Cells-Organelle-Molecule-Atom A current example of natural selection is - The bacteria that has become drug resistant The usual process for the scientific method is: - Observation-question-hypothesis-predictionexperiment-results-conclusion Starch is a reserve polysaccharide made up of _____ subunits - Gluclose Monosaccharides are to polysacharides as ______ are...

Sloths are arboreal (tree-dwelling) creatures so why do they defecate (poop) on the ground? Which of the following is a hypothesis based on this question? A. If sloth defecating behaviors are to facilitate mating, then the removal of sloth feces will not affect mating success. B. Sloths defecate in this way in order to attract mates C. Removal of sloth feces is the best way to answer this question D. No sloths successfully mated in areas where sloth feces was removed E. None of the above Co...

What is the hierarchy of life from largest to smallest? Correct Answer Biosphere-Ecosystem-Community-Population-Organism-Organ system-Organ-Tissue-Cells-Organelle-Molecule-Atom A current example of natural selection is Correct Answer The bacteria that has become drug resistant The usual process for the scientific method is: Correct Answer Observation-question-hypothesis-prediction-experiment-results-conclusion Starch is a reserve polysaccharide made up of _____ subunits Correct Answer G...

What is the advantage of using scientific notation? Correct Answer Useful when using extremely small or large numbers Why is a standard unit of measurement necessary in science and industry? Correct Answer It's easier to compare measurements. without it it makes it difficult to exchange information Mega Correct Answer million (10^6) Kilo Correct Answer thousand (10^3) Nano Correct Answer billionth (10^-9) Deci Correct Answer tenth (10^-1) micro Correct Answer millionth (10^-6)...

Basic steps of the hypothesis-testing method of scientific inquiry Correct Answer 1. Observation 2. Hypothesis 3. Predictions 4. Test data 5. Conclusion How is the hypothesis-testing method used to study ecological phenomena? Correct Answer Global warming, for example, is an ecological problem that could be studied by modeling more easily than by observation or experimentation, because it occurs over a large area and a long period of time. What are the strengths of scientific inquiry? ...

A mutation with a deleterious effect on the function of a protein encoded by a human mitochondrial gene will be: Correct Answer maternally inherited Genes that are close together in the same chromosome: Correct Answer tend to be transmitted together Which of the following BEST describes the development of sexual structures in mammals? Correct Answer Embryos initially develop both male and female structures, once SRY becomes active, female structures degenerate and male structures continue ...