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Bio 182 Exam 1 Cogbooks Practice Exams
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Bio 182 Exam 1 Cogbooks PracticeExams
True or False? Biodiversity on Earth will likely decrease in the near future. - -
False
-True or False? Scientists believe in evolution even though they currently
lack evidence for the theory. - -False
-Opposition to irrational numbers was based on evidence that such numbers
cannot exist. - -False - (No direct evidence for or against irrational numbers
was used to oppose the idea. A religious belief based on faith was used
instead.)
-Opposition to irrational numbers stemmed from a worldview involving
naturalistic evolution. - -False - (A creationist worldview was the reason for
opposing irrational numbers.)
-The belief that irrational numbers cannot exist reflects religion more than
science. - -True - (The notion that God(s) created a perfect world is the
product of a religion)
-Modern mathematicians accept irrational numbers because such numbers
provide more accurate solutions to problems than whole numbers do. - -True
- (irrational numbers are used because they enhance calculations of
measurable properties, such as the area of a circle).
-The scientific method relies on ____________.
models
observations
experiments
all of the above - -all of the above
-A model is a formal description of a scientific hypothesis. Which of the
following types of models provides the most precise description of a
hypothesis?
verbal
graphical
mathematical
All of the above are equally precise - -mathematical
, -An experiment enables one to demonstrate that a correlation between two
variables results from cause and effect.
True
False - -True
-A well designed experiment ____________.
a. controls for environmental and genetic factors.
b. involves replication of experimental subjects.
c. randomizes experimental subjects among treatments.
d. achieves all of the above. - -d. achieves all of the above.
-Biologists used induction to hypothesize that snakes use pits to see heat. -
-True
-Biologists used induction to predict the percentage of times that a snakes
with sealed pits would choose the cool box. - -False
-Each treatment (sealed pits vs. unsealed pits) was replicated 20 times. - -
False
-The experiment would be flawed if snakes were not randomly assigned to
each treatment. - -True
-The group of snakes whose pits were left unsealed served as a control in
this experiment. - -True
-Use this information to answer the questions below.
More than a decade after Darwin returned from his voyage on the HMS
Beagle, an explorer named Alfred Wallace voyaged to the Malay Islands.
Wallace was struck by the biodiversity of the islands. In particular, he noticed
animals with structures designed to attack plants, and plants with structures
designed to protect them from animals. Wallace reasoned that differences
among individuals provided advantages that gradually led to evolution. He
immediately sent a manuscript describing his idea to Charles Lyell, who then
shared the manuscript with Darwin. Wallace's model of evolution by natural
selection was published a paper that appeared in the same issue as Darwin's
paper.
Unlike Wallace, Darwin did not believe that natural selection required
variation among individuals. - -False
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