Biology 101 Session 1-4 quizzes Ivy Tech
Which of the following characteristics are associated with a scientific hypothesis?
Choose all that apply.
- must not be speculative
-must be testable
-must be well substantiated
-must be observable - ANS--must be testable
-must be observable
Which of the following is an example of experimental error?
-considering moisture when measuring powders
- documenting all aspects of an experiment
-failing to keep all conditions constant except for one variable
-ensuring repeatability of an experiment - ANS--failing to keep all conditions constant
except for one variable
Why is it important for a scientist to document all the components and parameters of an
experiment?
-to improve consistency and repeatability
-to formulate a hypothesis
-to communicate the results
-to determine cause and effect - ANS--to improve consistency and repeatability
Dr. Semmelweis made a table comparing the death rates of Division 1 and Division 2
from 1841- 1846 (see Table 2.1 in the textbook). What step in the scientific method do
these data represent?
-His observations about what was occurring.
-The results he communicated after a conclusion was reached.
-The problem or question that needed to be solved.
-The experiments he performed before reaching a conclusion. - ANS--His observations
about what was occurring.
Which of the following would be a method appropriate for science?
, - Logically determine cause of a phenomenon without testing the hypothesis.
-Observe birds in two different areas to determine the suitability of a wetland as a bird
sanctuary.
-Use popular opinion to determine the answer to a problem.
- Identify the most important phrase in a song or poem to illustrate the point of the
author. - ANS--Observe birds in two different areas to determine the suitability of a
wetland as a bird sanctuary.
Which of the following allowed Dr. Semmelweis to discover the cause of childbed fever?
-He was more educated than others in his division.
-He only changed one variable at a time.
-He was willing to risk lives to find the answer.
-He changed multiple variables simultaneously. - ANS--He only changed one variable
at a time.
Science or NOT Science? Watching television you see an interview with someone
claiming that man never landed on the moon, and it was all just one big conspiracy.
When the interviewer asks about all of the evidence that dispute such a claim, the
interviewed personality says, "That's just what they want you to believe. Like I said, it's a
conspiracy!" Select the scientific assumption or principle that is most likely NOT met by
this claim.
-cause and effect
-consistency and repeatability
-materialism
-must accept or explain new evidence - ANS--must accept or explain new evidence
What do you think would have happened to the mortality rate in Division 2 if the
midwives also adopted practices that protected against "cadaverous particles," although
they did not perform autopsies?
-It would have remained the same because midwives were not in contact with
"cadaverous particles".
-It would have decreased because the exposure to germs would have decreased.
-It would have increased because of the use of bleach.
-It would have increased because of the additional hand washing. - ANS--It would have
decreased because the exposure to germs would have decreased.
In which of the following areas was Dr. Semmelweis a forerunner?
, -intravenous use of antibiotics
-Lamaze birthing method
-using bleach as a disinfectant
-germ theory - ANS--germ theory
What consideration did Dr. Semmelweis make when setting up his tests to determine
the cause of childbed fever?
-influence of environment
-type of personnel in only one division
-lifestyles of mothers in each division
-degree of education for personnel in each division - ANS--influence of environment
Science or NOT Science? You may encounter claims in online advertising that are
meant to sound scientific. Watching a documentary about how animals attract each
other with chemical signals has made you curious about an ad on a website that claims,
"One crazy tip that will make you attractive no matter what!" After going to the
advertiser's website and spending 30 minutes watching a video about the product, you
discover that the product is a cologne (a scented chemical) you've never heard of.
Select the scientific assumption(s) or principle(s) that is (are) most likely NOT met by
the product claim. Choose all that apply.
-must accept or explain new contradictory evidence
-cause and effect
-consistency and repeatability
-materialism - ANS--cause and effect
-consistency and repeatability
Science or NOT Science? You encounter a claim in online advertising that states
"Quartz Crystal jewelry will align your spiritual and physical energies." Select the
scientific assumption(s) or principle(s) that is (are) most likely NOT met by the product
claim. Choose all that apply.
-cause and effect
-must accept or explain new contradictory evidence
-consistency and repeatability
-materialism - ANS--cause and effect
-materialism
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