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Biology And You
Test Description: Experimental Design
Instructions: Answer all questions to get your test result.
1) Researchers performing a well-designed experiment should base their conclusions on
A
the hypothesis of the experiment
B
a small sample size to ensure a reliable outcome of the experiment
C
data from repeated trials of the experiment
D
results predicted before performing the experiment
2) Which statement best describes a scientific theory?
A
It is a collection of data designed to provide support for a prediction.
B
It is an educated guess that can be tested by experimentation.
C
It is a scientific fact that no longer requires any evidence to support it.
D
It is a general statement that is supported by many scientific observations.
3) The analysis of data gathered during a particular experiment is necessary in order to
A
formulate a hypothesis for that experiment
B
design a control for that experiment
C
draw a valid conclusion for that experiment
D
develop a research plan for that experiment
4) A scientist is planning to carry out an experiment on the effect of heat on the function of a certain enzyme. Which would not be an appropriate first step?
A
completing a data table of expected results
B
doing research in a library
C
using what is already known about the enzyme
D
having discussions with other scientists
5) Why do scientists consider any hypothesis valuable?
A
A hypothesis may lead to further investigation even if it is disproved by the experiment.
B
A hypothesis requires no further investigation.
C
A hypothesis can be used to explain a conclusion even if it is disproved by the experiment.
D
A hypothesis requires no further investigation if it is proved by the experiment.
6) A biologist reported success in breeding a tiger with a lion, producing healthy offspring. Other biologists will accept this report as fact only if
A
the biologist included a control in the experiment
B
other researchers can replicate the experiment
C
the offspring are given a scientific name
D
research shows that other animals can be crossbred
7) A science researcher is reviewing another scientists's experiment and conclusion. The reviewer would most likely consider the experiment invalid if
A
the hypothesis was not supported by the data obtained
B
it contains conclusions not explained by the evidence given
C
the sample size produced a great deal of data
D
other individuals are able to duplicate the results
8) Which source would provide the most reliable information for use in a research project investigating the effects of antibiotics on disease-causing bacteria?
A
a news program on national television about antigens produced by various plants
B
the local news section of a newspaper from 1993
C
an article in a weekly news magazine about reproduction in pathogens
D
a current professional science journal article on the control of pathogens
9) Though scientists study the world from differing perspectives, what must all scientists take into account?
A
the importance of biology
B
animal behavior
C
universal laws
D
temperature differences
10) A student observes that an organism is green. A valid conclusion that can be drawn from this observation is that
A
not enough information is given to determine whether the organism is a plant or an animal
B
the organism must be an animal
C
the organism must be a plant
D
the organism cannot be single-celled
*select an answer for all questions
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