Practice Quiz

IB Biology Exam Prep - Question List

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56.
A study is being conducted to determine whether there is a causal link between a recently built chemical factory and the health of people in the surrounding area. Which of the following types of information would most strongly suggest that there is a causal relationship?
  1. Visible air pollution in nearby neighborhoods.
  2. Historical links between chemical manufacturing and human health issues.
  3. Opinions of people living near the chemical plant.
  4. Increases in the number of patients being treated for asthma in nearby medical facilities.
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57.
A laboratory investigation requires students to dispense 5 mL of a 1 molar sodium chloride solution. Which of the following pieces of laboratory glassware should the students use to achieve the most precise measurement?
  1. 5 mL graduated beaker.
  2. 10 mL graduated cylinder.
  3. 15 mL graduated conical flask.
  4. 20 mL graduated test tube.
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58.
An excess of a chemical measured out for use in a laboratory experiment should be:
  1. Returned to the original stock.
  2. Reported on a Material Safety Data Sheet form.
  3. Disposed of according to state guidelines.
  4. Labeled and set aside for use in the future.
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59.
Which of the following factors was primarily responsible for the initial increase in O2 in the earth's atmosphere?
  1. The escape of gases from volcanoes.
  2. The emergence of multicellular organisms.
  3. The photosynthesis of cyanobacteria.
  4. The condensation of water into oceans.
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60.
Formulating a testable hypothesis is particularly important when:
  1. Determining cause and effect relationships between observable phenomena.
  2. Interpreting a model that can be used to describe the workings of a natural system.
  3. Explaining the interactions of all natural phenomena in terms of a few basic laws.
  4. Describing as many characteristics as possible of living and nonliving things.
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