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Midterm

BIOL 1412 Midterm: FINAL NO ANSWERSExam


Department
Biology
Course Code
BIOL 1412
Professor
All
Study Guide
Midterm

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Biol:1412 Summer 2016 Final Exam Key 100 pts/2hrs
1
Fill in ALL ID (+) requested on this page.
+Legible Name __________________________________+Student ID#_______________
+Legible signature ___________________________________________
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Circle your TA's name and section #: A01 Cindy M/W A02 Alaine T/Th
******************************************************************************
On your SCANTRON, fill in the following information both in writing (boxes at
head of columns) and by filling in the appropriate dots:
(1) Name (last name first)
(2) ID number (first 8 columns)
(3) Section number in columns J-K (use 2 numerals, e.g. '01', '02').
(4) Test Form in appropriate place
******************************************************************************
READ EACH QUESTION through before answering it!!
You must use pen on the short answer questions if you want to be able to
submit your test for a regrade next week!
Show your reasoning on short answer questions.
Calculators may be used to solve the calculations! Turn off all other devices!
If you are uncertain about instructions or questions, please ask a proctor. We
will define any word that is not vocabulary for this course or prerequisite courses.
You may make a comment next to one of the multiple choice that I will look at
and may award (if appropriate) partial credit. Indicate the # of the question here:
___
************************************************************************
If you have any comments on questions you must submit them to the
instructor (Dr. Holbrook) today by 5pm if these comments are to be taken into
account in grading.
TEST FORM: A

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Biol:1412 Summer 2016 Final Exam Key 100 pts/2hrs
2
Section 1: MULTIPLE CHOICE
Choose the best answer for each of the following. [1pt each]
1. Reznick researched closely related guppies in pools on Trinidad. The guppies in
different pools had differences in their life histories due to differences in the
____________ and these life histories were _________ when the guppies were moved
to the other pools.
A. predator present; observed to change
B. predator present; not observed to change
C. prey species present; observed to change
D. prey species present; not observed to change
E. amount of prey present; not observed to change
2. Species A and Species B occupy an area and you suspect they interact. When you
remove species A the number of individuals of species B quickly increases. Which of
the following is an ecological interaction which would be consistent with this observation
along with an appropriate explanation?
A. amensalism; A is harmed by the presence of B while A has no effect on B
B. commensalism; A benefits from the presence of B while A has no effect on B
C. competition; A and B compete for a limiting resource
D. mutualism; A and B both receive a benefit from the other
E. predation; A is the prey for predator species B.
3. In general predation tends to ________ species diversity while competition
________ species diversity.
A. decrease; decreases
B. decrease; increases
C. increase; decreases
D. maintain; decreases
E. maintain; increases
4. Which of the following is the definition of a community?
A. An individual in its niche.
B. A group of organisms all of the same species.
C. A group of organisms of different species interacting with each other in an area.
D. An environment defined by its climate and geography.
E. None of the above.
5. Deciduous forests:
A. have warm winters and hot summers.
B. have cold winters and warm summers.
C. have fewer species of birds than prairies.
D. have less precipitation on average than prairies.
E. None of the above.

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Biol:1412 Summer 2016 Final Exam Key 100 pts/2hrs
3
6. As the number of Batesian mimics increases:
A. the fitness of the model and mimic decreases.
B. the fitness of the model decreases and the fitness of the mimic increases.
C. the fitness of the model increases and the fitness of the mimic decreases.
D. the fitness of the model and mimic stay constant.
E. the fitness of the model and mimic increases.
7. Which of the following adaptations increases the likelihood of predator success in
catching prey?
A. Batesian Mimicry
B. Crypsis of the prey
C. Exploitative Mimicry
D. Homotypy of the prey
E. Mullerian Mimicry
8. You observe an inverted Eltonian pyramid which contains a greater biomass of
herbivores than producers. This can occur because:
A. the environment in this location allows the organisms residing there to not give off
much energy as heat.
B. this environment contains a keystone predator.
C. the producers have very low rates of growth, r, as compared to the herbivores.
D. the producers have very high rates of growth, r, as compared to the herbivores.
E. the producers and the herbivores both have very low rates of growth, r.
9. Fundamental niches:
A. are the same size or larger than realized niches.
B. can be limited due to the species evolutionary history.
C. can be limited due to competitive exclusion.
D. All of the above.
E. B. and C.
10. An Eltonian pyramid of ecosystem A has fewer trophic levels than an Eltonian
pyramid of ecosystem B. A likely explanation for this difference is:
A. Ecosystem A has less herbicide and pollution than ecosystem B.
B. Ecosystem A has more ectotherms than ecosystem B.
C. Ecosystem A is wetter than ecosystem B.
D Ecosystem A is warmer than ecosystem B.
E. None of the above.
11. Replacement of all fossil fuels with efficient biofuels would be expected:
A. to increase the amount of carbon dioxide in the atmosphere.
B. to stabilize the amount of carbon dioxide in the atmosphere.
C. to decrease the amount of carbon dioxide in the atmosphere.
D. to reduce the amount of methane in the atmosphere.
E. None of the above.
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