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Biology in the 21st Century

Quiz by Heather Felix

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14 questions
Show answers
  • Q1
    Scientist use scientific thinking to test
    conclusions
    hypotheses
    observations
    data
    30s
  • Q2
    Which is true about a dependent variable in an experiment?
    It never changes during the experiment.
    It is manipulated by a scientist.
    It is not affected by the independent variable.
    It is the experimental data.
    30s
  • Q3
    When scientists are "evaluating results" as a part of scientific thinking, they mainly
    collect data from other scientists.
    use statistics to analyze their data.
    explain data they collected and analyzed.
    examine prior research on a topic.
    30s
  • Q4
    Scientific theories can change when scientists
    criticize existing data.
    prepare and test different hypotheses.
    provide conflicting scientific evidence.
    prove alternate theory.
    30s
  • Q5
    Which of the following statements is true of the many parts of the biosphere?
    Each part includes salt water.
    Each part is isolated from the others.
    Each part is completely unique.
    Each part is connected to all the others.
    30s
  • Q6
    On Earth, biodiversity generally increases from the
    poles to the equator
    equator to the rainforest
    north to the south
    east to the west
    30s
  • Q7
    Only individuals belonging to the same species are able to
    inhabit a particular ecosystem.
    reproduce by interbreeding.
    respond to stimuli in the same way.
    use similar metabolic processes.
    30s
  • Q8
    Organisms use energy for all chemical processes. Together all these processes are called
    adaption
    homeostasis
    negative feedback
    metabolism
    30s
  • Q9
    What is the correct description of evolution?
    change in the genetic makeup of a population over time
    30s
  • Q10
    Which phrase best describes an ecosystem?
    the variety of organisms on Earth or in a particular area of the biosphere
    a group of living things that can interbreed to reproduce
    all living things and the places on Earth where they are found
    organisms interacting with each other and with nonliving things in a certain region
    30s
  • Q11
    Which of the following are most important for an organism to maintain homeostasis?
    interactions with nonliving things
    behaviors and negative feedback
    dependence on other organisms
    reproduction and development
    30s
  • Q12
    Computer modeling would most likely have applied to which of these biological research topics?
    how different amounts of fertilizer change crop yields
    how sugar levels in an athlete's muscles change during exercise
    how a drug to treat cancer affects laboratory rats that have cancer
    how the West Nile virus might spread among a population
    30s
  • Q13
    Which of these biological advances was most likely achieved through molecular genetics?
    exploring frog deformities caused by parasites
    searching for signs of life on other planets
    identifying the virus that causes polio
    identifying disease-causing genes
    30s
  • Q14
    An understanding of biology helps you evaluate important issues based on
    opinions
    economics
    hypotheses
    evidence
    30s

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