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1.1What are the seven characteristics of a living organism? Describe them in your own words.1.2Life is organized in a hierarchical fashion. Which of the following sequences correctly lists that hierarchy from least inclusive to most inclusive?ecosystem, population, organ system, cell, community, molecule, organ, organism, organelle, tissuecell, molecule, organ system, organ, organelle, population, tissue, organism, ecosystem, communitymolecule, cell, organism, organ system, tissue, population, organ, organelle, community, ecosystemmolecule, organelle, cell, tissue, organ, organ system, organism, population, community, ecosystemWhat is the difference between a tissue and an organ system?The tissue level of organization is more inclusive than the organ system level.Tissues are not composed of cells; organ systems are composed of cells.A tissue cannot exist unless it is a component of an organ system, whereas an organ system can exist independently of tissues.An organ system includes tissues.What distinguishes an ecosystem from a community and a biosphere?1.3 What are the differences between prokaryotic and eukaryotic cells?Prokaryotic cellsEukaryotic cellsWhat do prokaryotic and eukaryotic cells share in common?1.4Which of these sequences is not a correct pathway of energy through an ecosystem?insects → birds → bacteriaplants → insects → birdsplants → birds → bacteriabacteria → plants → birdsThe dynamics of ecosystem include the ________________ of chemicals and the ____________ of energy.How does the ecosystem gain energy? How does it lose energy?Describe the process by which chemicals are recycled in the environment.1.5Which of the following statements provides the best evidence that there is a common genetic code that demonstrates the unity of life?Bees, birds, and bats all have wings and fly.Bacteria, mushrooms, and cats all have DNA.Many insects can pollinate only a particular species of plant due to many generations of evolutionary adaptation.Through genetic engineering, a gene from a firefly can be inserted into a bacterium to make it glow.What are nucleotides? How many distinct nucleotides are used in DNA molecules?Draw and label a segment of a DNA double helix:1.6Please fill out this table with the relevant information.Cellular organization:ProkaryoticEukaryoticDomain:Kingdom:Description:1.7Explain the meaning of the phrase “descent with modification.”Which of the following statements about evolution is true?Individuals evolve within the span of their own anisms evolve structures in response to needs.Evolution is deliberate and purposeful.Evolution can result in adaptations.What is evolution and natural selection? How are these terms related to each other?1.8-1.11What are the basic steps of the scientific method?What are important characteristics of a good hypothesis?What is the difference between a theory and a hypothesis?How does bacterial evolution contribute to the development of new drugs?The role of a control in an experiment is toprovide a basis of comparison to the experimental group.prove that a hypothesis is correct.ensure repeatability.counteract the negative effect of the experiment.None of the above.Summary questions:After reading the paragraph below, answer the questions that follow.Scientists were interested in knowing the best way to restore an area after a temporary road was built through it. They completed a study comparing two treatments: (1) restoring the contour of an area so that there was no longer a depression where the road was previously and (2) simply abandoning the area to allow vegetation to return on its own. They wanted to know whether either or both of these treatments would return the aboveground vegetation and the belowground soil properties to their original state, as seen in a similar area where there had never been a road.This study was focused on which level of life's hierarchy?OrganismCommunityPopulationEcosystemWhich of the following best describes the data that the scientists should collect and how they should be compared?comparison of plant species in the recontoured area, the abandoned area, and the never-roaded areacomparison of properties of soil and plant species in the contoured area and abandoned areacomparison of soil properties and species of plants present in the contoured area with the never-roaded area and of the abandoned area with the never-roaded parison of soil properties only among all three areas since soil properties will determine plant speciesIn this experiment, the area that had never had a road is useful to the experiment becauseat least three samples are necessary to have a valid experiment.the area never roaded serves as a control for the experimental variables of recontoured and abandoned.the researchers need to know what species of plants were common to all three areas.since all three areas had existed for the same amount of time, the third area allowed time to be controlled as a variable.Refer to the following graph to answer questions 28 – 30.What independent variables are depicted in this graph?What is the dependent variable?Variety A and B represent two different species of dogs: Variety A = Poodles and Variety B = Pitbulls. What is a viable hypothesis you could make by looking at this data? ................
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