Bio 101 Exam I Sp08
Stavney
Name
Lecture Exam I
100 points total. Directions:
1. First, write your name at the top of this exam.
2. On a computerized answer form, fill out your name, date, class, and exam number
3. Write the first three letters of your last name across the back top part of the computer form.
4. Answer all the multiple-choice, true-false questions directly on a computerized answer form,
filling in the rectangles with a #2 pencil that correspond to the correct answers.
5. Complete the short answer sheet at the back of the exam, including putting your name on that
sheet.
6. Separate the short answer sheet from the rest of the questions, fold it in half lengthwise, and
write the first three letters of your last name in the blanks provided.
7. Insert your computer form into the folded sheet.
8. Insert the folded short answer sheet in between the pages of these questions.
9. Submit your exam
Completed exam
for student Joe Smith
1. A scientist has made several preliminary measurements and is ready for the next step of the scientific
process. What is this next step?
a. setting up and running experiments
b. making observations
c. drawing conclusions based on the data
d. formulating tentative, predictive statements
e. deciding which hypothesis is valid based on the experimental results
2. Which of the following could be called a proper null hypothesis?
a. Bigger gumballs have no taste
b. There are no birds that live in the desert
c. The larger the bird, the smaller the beak size
d. The size of your head does not affect how long your arms are
e. The smaller the bird, the smaller the beak size
3. Which two concepts lists below are essential components of the data-gathering phase of the scientific
method?
a. deductive and finalizing
b. multiple trials and controls
c. tentative and provisional
d. predictable and testable
e. biased and subjective
4. What level of biological complexity is next more complex than the cellular level (i.e. what level comes
just above the cellular level)?
a. population level
b. organ level
c. organelle level
d. tissue level
e. molecular level
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5. In the scientific hypothesis, The taller a human is, the longer the foot that person will have, the value
of height is known as the:
a. control variable
b. null variable
c. consequential variable
d. dependent variable
e. independent variable
6. Which statement is the underlying reason why fewer and fewer organisms can be supported at higher
and higher tropic levels in a food chain?
a. The higher up an organism is in the food chain, the more energy it expends per minute
b. Organisms higher in a food chain tend to be bigger and therefore have to eat more
c. Organisms near the top of food chains tend to be poisoned by the concentration of pollutants
d. Only 10% of the energy of any one trophic level is passed to the next trophic level
e. More offspring are produced by predators than can survive to reproduce
7. In the food chain below, which organism is the tertiary consumer?
diatom algae-->copepods-->candlefish-->salmon-->bald eagle
a.
b.
c.
d.
e.
the diatom algae
the salmon
the copepods
the candlefish
the bald eagle
8. The bald eagle shown in the food chain in the previous question belongs to the ______ group.
a. primary producers
b. omnivores
c. carnivores
d. herbivores
e. decomposers
9. The City of Lakewood has recently dumped lime (calcium hydroxide) into Lake Waughop to reduce
the level of phosphorous in the lake. What is the City trying to avoid?
a. precycling
b. ecotones
c. the greenhouse effect
d. eutrophication
e. biodiversity
10. Which of the following environmentally-friendly acts would be considered most significant and
having the most benefit by an ecologist?
a. Recycling used paper and bottles by placing them in campus recycling bins
b. Reusing plastic grocery bags by taking them back to the store on your next buying trip
c. Carpooling to school to cut down on the use and combustion of fossil fuel
d. Selling your textbooks back to the bookstore so someone else can use them
e. Making sure your car doesn't leak oil or antifreeze into the college parking lot
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-------------------------------------------------------------------------------------------------------------------TRUE/FALSE Answer "a" if true and "b" if false.
11. Driving your car to school indirectly contributes to global warming.
12. The lower the biodiversity of a community, the more stable it is (the more likely it will survive a
disturbance).
13. In logistic (uncontrolled exponential) population growth, the rate of population growth slows as the
total number of individuals approaches the carrying capacity.
---------------------------------------------------------------------------------------------------------------------------14. A progression of different plant and animal communities (beginning with bare rock) in a given area,
leading to a stable, mature forest is known as:
a. biomagnification
b. primary succession
c. secondary succession
d. eutrophication
e. biodiversity increase
15. As shown by the study of the warbler birds in a New England forest, competitive exclusion can be
avoided by:
a. a prudent life history strategy
b. sharing the same habitat
c. dividing up the resource into different niches
d. fostering density independent mortality factors
e. changing the patterns of dispersal
16. Which of the following is a density independent mortality factor?
a. disease
b. volcanic eruption
c. competition for mates
d. competition for food
e. predation
17. The Theory of Acquired Characteristics, which proposed that physical changes during an organism's
lifetime could be inherited by offspring, was proposed by:
a. Jean Baptiste Lamarck
b. Charles Darwin
c. Charles Lyell
d. Niles Elridge
e. Steven Jay Gould
18. Which of the following is NOT a major part of Darwin's Theory of Natural Selection?
a. in every population, there are more offspring born than will survive to reproduce
b. characteristics that help an individual survive will tend to become more common in a
population
c. some individuals will reproduce more often than others
d. there is competition between individuals for limited resources
e. sexually reproducing species form populations that are genetically identical
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19. Which of the graphs below shows the life history strategy or pattern of an organism that matures
early, reproduces one or twice producing huge numbers of offspring, and whose parents do not care for
their young? Answer A-E.
20. Examine graph of the population changes in two species over time. What is the probably relationship
between these two species?
a. Species A and Species B are in direct competition with each other
b. Species A is a carnivore, while B is an herbivore
c. Species A is under directional selection
d. Species A is a predator of Species B
e. Species B is a predator of Species A
21. Which of the following statements is NOT evidence of artificial selection?
a. the many different varieties of corn that one can buy seeds for
b. the many breeds of cats that exist today
c. the different sounds produced by individual German shepherd dogs
d. the vegetables known as cabbage, kale, brussel sprouts, and broccoli
e. the many varieties of chili peppers that exist today
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Answer the following questions using the biome map above by using the letter or letters pointing to the
correct land areas. Note that if the answer is more than one letter, like "AD", fill in both "a" and "d" on
your answer sheet for that question.
22. Which biome in the choices above receives more than 80 inches of rain a year, has an extremely high
biodiversity of organisms, and is home to gorillas, chimpanzees, and tigers?
23. Which biome above is known as chaparral?
24. Which biome is hot desert?
-----------------------------------------------------------------------------------------------------------------------------TRUE/FALSE Answer "a" if true and "b" if false.
25. The two variables that specify a particular biome are temperature and the amount of precipitation.
26. Traveling up a mountainside is equivalent to the biomes you'd encounter when moving east or west
from a point along the equator.
27. In the biological system of classification (taxonomy), a Family contains fewer organisms than an
Order.
-----------------------------------------------------------------------------------------------------------------------------28. Which is a proper definition of the term gene pool?
a. All the organisms within the same taxonomic genus
b. All the organisms that undergo natural selection in the same way at the same time
c. The brand of denim pants worn by fish in a lake
d. All the genes for a particular characteristics found among all the individuals of a population
e. the change in the genetic makeup of a population due to chance
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Examine the results of natural selection below:
29. Which diagram above shows the results of natural selection where the extreme variants of a
population reproduce more often than the most common, middle variants?
30. Which diagram above shows stabilizing selection?
---------------------------------------------------------------------------------------------------------------------TRUE/FALSE Answer "a" if true and "b" if false.
31. An example of a pre-zygotic (pre-fertilization) reproductive barrier would be if two different groups
of a population of plants reproduce at different times of year.
32. The modern version of natural selection, known as "punctuated equilibrium", states that organisms
have changed very slowly and gradually over many thousands and millions of years.
33. According to the scientific definition of a species, two individuals that can successfully reproduce are
consider members of the same species.
34. Sympatric speciation occurs when a physical barrier, such as a mountain range, river, or canyon
separates a population into two groups that evolve independently.
-----------------------------------------------------------------------------------------------------------------------------35. Which of the following lists groupings or taxons in descending order, from most inclusive to least
inclusive? Some lists may be missing some of the intermediate taxons.
a. Class, Family, Species, Order, Phylum
b. Domain, Phylum, Family, Class, Species
c. Phylum, Class, Order, Genus, Family
d. Kingdom, Class, Family, Species
e. Family, Order, Class, Species
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36. What would be the correct way to write the scientific name for an organism in Order Rodentia,
Kingdom Animalia, Species Himalayanus , Domain Eukarya, Genus Arctomys, Phylum Chordata, and
Family Scuridae? If the correct answer is more than one letter, such as "ab", fill in both "a" and "b" on
your answer sheet.
a. Rodentia Scuridae
b. Scuridae arctomys
c. Arctomys himalayanus
d. Arctomys Himalayanus
e. Himalayanus scuridae
ab. Eukarya Animalia arctomys
ac. Animalia eukarya
ad. Rodentia himalayanus
ae. animalia Eukarya
bc. Chordata arctomys
be. Himalayanus arctomys
----------------------------------------------------------------------------------------------------------------37. Which of the following could cause evolution, but not natural selection, in a population?
a. Predators eating more of conspicuous (easily found) prey individuals
b. Individual animals with bigger mouths getting access to more food than others
c. Immigration or emigration of individuals from a population
d. Large individuals and small individuals mating being able to mate more often than middlesized individuals
e. Plants of a species with slightly bigger leaves being able to live longer in a shady forest
38. What causes the depletion of the ozone layer?
a. Burning coal
b. Release of refrigerants (CFCs) into the atmosphere
c. Automobile exhaust
d. Release of persistent (long-lived) toxins into the natural environment
e. Release of raw sewage or fertilizer into streams and lakes
39. The relationship between the algae and the fungi in a lichen is known as a:
a. parasitic symbiosis
b. mutualistic symbiosis
c. commensal symbiosis
d. amensal symbiosis
e. destructive symbiosis
40. The single most important rule in the laboratory is:
a. Tie back long hair so that it won't fall into your experiments
b. Push in your chair whenever you are standing or moving around the classroom
c. Know the location of the nearest fire extinguisher and how to use it
d. No eating or drinking in the laboratory
e. Keep your backpack, purse, or coat under the lab table
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Short Answer Page
Bio 101 Exam I
Name
20 pts. When finished, separate this page of the exam from the rest of the questions, fold it in half lengthwise, and insert your
Computer Answer sheet into the fold. Write the first three letters of your last name in the blanks provided on the back, and insert
the folded page with the computer form inside, between the pages of the questions. Be sure your name is on the exam, the
Computer Answers Sheet, and the folded last page.
A. 6 pts. Name three unique properties of a living thing in sufficient detail as to clearly separate it from
the properties of a non-living thing.
1.
2.
3.
B. 4 pts. What causes the greenhouse effect and global warming? Use complete sentences for full credit.
C. 2 pts. Describe what you know about the future of the population
diagrammed at the right in the year 2000.
D. 2 pts. What biome experiences distinct hot-cold seasons, has few
trees, and is known as the steppes or pampas in certain countries of
the world?
E. 4 pts. Explain why bacteria in your body might become resistant to a certain antibiotic if you
repeatedly fail to fully take your prescribed antibiotic medicine to combat subsequent infections. Be sure
to mention the role that variation and reproduction play in this process. Be sure to use full English
sentences for full credit.
F. 2 pts. Name one specific type of genetic drift:
Exam I Bio 101 pg 9
First three letters of last name
Exam I Bio 101 pg 10