BI 171 - First Exam - 2007

Links connect to relevant parts of the online book.

Multiple Choice.

Place the letter of the choice that best answers the question on the line to the left.
Two Points Each. NOTE: "e" answers are never the correct answer.

_______1.  Which is an allowable species name?
                        a. Hillaria Clintona                 b. baraka obama                 c. josephi Bideni
                        d. Johnus mccainius                         e. Those are some unfit species...


_______ 2.  Which best reflects on the hypotheses on why cells are limited in size?
                        a. Volume and surface area increase at the same rate
                        b. Volume increases at a faster rate than surface area
                        c. Volume increases at a slower rate than surface area
                        d. All of the above
                        e. Cells are teeny - that's just the rule

_______ 3.  Sectioning is often required for what type of microscope?
                        a. Electron                 b. Light                 c. Transmission                d. Scanning                 e. The one that needs sectioning


_______ 4.  Which is an example of a direct observation?
                        a. Hearing an echo                           b. Listening to someone's experiences
                        c. Reading an article                         d. Using a radiation detector
                                                e. Reading questions through the tears

_______ 5.  The bones of a human arm and a front dolphin flipper have the same basic bones, different only in layout and use.
                                The arm and flipper are
                        a. Analogous only                         b. Homologous only                        c. Both analogous and homologous
                        d. Neither analogous nor homologous                        e. Both tasty with the right sorts of seasonings

_______6.  One of Lamarck's ideas still has a great influence on how people think about evolution, even though it's wrong.
                                What is the idea?
                        a. Evolution only happens gradually
                        b. Traits acquired during a lifetime can be passed as changed to offspring
                        c. Evolution is a totally random process
                        d. Evolution is progress, leading toward predictable goals
                        e. It never happened

_______7.   The broadly-accepted current way to determine a species involves
                        a. Doing breeding experiment                                        b. Running genetic tests
                        c. Observing behavior in nature                 d. Comparing embryos                    e. Guessing, mostly


_______ 8.  In modern science, peer review is most likely to happen at which stage?
                        a. Hypothesizing                     b. Publication of results                    c. Experimental design
                        d. Collection of data                                    e. When it hits YouTube

_______ 9.  Which is not a way that DNA nucleotides connect across strands?
                        a. Adenine - Thymine                         b. Guanine - Cytosine                        c. Adenine - Cytosine
                        d. Thymine - Adenine                                    e. I feel like a Geico caveman...but dumber...

_______ 10.  Which is most likely to leave a nice, continuous fossil record?
                        a. A species of tree                         b. A species of dinosaur                        c. A species of desert tortoise
                        d. A species of clam                                    e. The one with the fossil recording contract


_______ 11.  "Ontogeny recapitulates phylogeny" is a concept related to how
                        a. Layers of fossils are created
                        b. A sequence of lenses can both clarify and magnify
                        c. Development of embryos mirrors ancestral evolution
                        d. Metabolic pathways mimic genetic sequences
                        e. Big words can be really confusing

_______ 12.  When taxonomic disagreements are raised, what changes are usually made?
                        a. Both group names and taxonomic levels about equally                b. Nothing is allowed to be changed
                        c. Group names                d. Taxonomic levels            e. If it's a nice disagreement, folks might change their minds...

_______ 13.  In DNA coding, the typical ratio is
                        a. Three DNA nucleotides for one protein amino acid
                        b. Two DNA nucleotides for one protein amino acid
                        c. Three protein amino acids for one DNA nucleotide
                        d. Two protein amino acids for one DNA nucleotide
                        e. A bit of this to a different bit of that


_______ 14.  Uniformitarianism was developed as an approach to
                        a. Reproducible experiments                 b. Understanding past processes                c. Genome comparisons
                        d. Development of cell theory                                    e. Getting a world's record for long words

_______ 15.  Artificial selection can be applied as a term to which example?
                        a. Mendel's pea plants         b. Meatier cattle        c. Pit bull breeding         d. Any of these
                                                e. Surfing the internet for questionable sites


_______ 16.  Which comes closest to being the same as a microscope's resolution?
                        a. Imaging system         b. Maximum magnification        c. Ease of use         d. Focusing capability
                                                e. Microscopes make promises on New Year's Eve-?


_______ 17.  Evolutionary rates are most likely to be
                        a. Slow and gradual                         b. Punctuated                        c. Patterned after environmental changes
                                                d. Dictated by what the ultimate goal of the changes are
                                                e. As difficult to understand as changes in the stock market

_______ 18.  Which slogan could be used for reductionism?
                        a. "Don't worry about the details"
                        b. "You have to know history to know the present"
                        c. "If it isn't numbers, it isn't useful"
                        d. "Understand the pieces, understand the whole"
                        e. "Save the cheerleader, make good ratings"


Short Answer.

Pick NINE questions to answer in the spaces provided.
NOTE: if you answer MORE than nine, only the first nine will be corrected.
Four Points each. Partial credit is possible.

1.  What are two conditions a Hardy-Weinberg population requires, that do NOT involve a form of selection?



2.  For an electron microscope, compared to a light microscope, give one -




3.  Briefly explain how a founder effect works.



4a.  Give an example of a type of data that is really qualitative.



4b. Explain a way to make that data quantitative.



5.  What features does a species need to be considered colonial?



6.  Basic scientific method (the approach, not the details of experimental design) has several principal features. What are two?



7.  Explain how sexual selection works.



8.  Put the following groups in order from the largest to the smallest: Class, Family, Genus, Kingdom, Order, Phylum, Species, Subclass, Superfamily.
1 4 7
2 5 8
3 6 9
9.  Relatedness can be measured comparing what different types of molecules?



10.  Briefly explain the role that postmodernism plays in science.



11.  According to Malthus, what are two natural limiting factors to growing populations?



12.  What are two sets of circumstances that have led to the evolution of alternation of generations in different groups?



13.  What are two different traits that viruses don't have but "living" things do?



14.  For each, give a disadvantage -




Long Answer.

Select and answer completely any four of the following questions.
Note: if you answer more than four, only the first four will be corrected.
Seven Points Each. Partial credit is possible.

1.  Define any four (don't do more than 4) of the following terms as they apply to scientific method:






2. Give the steps that, according to the Theory of Evolution by Natural Selection, should happen between the steps given.
The environment around a population changes.






The new population is different enough to be considered a new species.

3.  What are four different major discoveries that were made in genetics before the Watson & Crick discovery about DNA structure?








4.  Give the following for sexual reproduction -




compared to asexual


compared to asexual


5.  Give four rules from the classic Cell Theory.






6.  What are four basic features that all living things are supposed to have?






7.  Name four of the Six "Basic" Kingdoms, and for each list enough traits to make it clearly different from the other five.









Link to Answer Key


Answer as many or as few as you wish. You can't lose points on the rest of the exam by getting these wrong. Partial credit is possible.

Supernatural explanations of the world are often considered unscientific. Give one reason why. Three Points.


In what critical way are biology Laws different from physics Laws? Three Points.


What biology subfield was made a bit more bizarre by Linnaeus? Two Points. Two more if you can explain why.


What limitation is found in multicellular systems where cells have cell walls? Three Points.


Why exactly was the idea of extinction considered heretical? Three Points.

In what way can a low chromosome number mimic asexual reproduction? Three Points.


Which major group typically reproduces sexually, but has no genders? Three Points

What sorts of events can cause a population bottleneck? Two Points each.

Hardy-Weinberg equilibrium requires very unnatural conditions - so why is it used in describing natural processes? Three Points.




BI 171

Michael McDarby


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