SCI 135 - First Exam Fall 2015

Links in each number connect to the pertinent sections of the online book.


On the line to the left, place the letter of the choice that best answers the question.
Three Points Each. NOTE: "e" answers are never the correct answer.

            1.  A good experiment should have many subjects or trials to

_______   a. Make sure the measurements are accurate
                b. Reduce the influence that chance can have on results
                c. Eliminate personal bias from the study design
                d. Introduce multiple variables
                e. Make sure the lab folks are earning their paychecks

            2.  A drug developer scientist consults with the company’s chemists as they try to develop
                            potential new drugs – this process in science is called

_______    a. Peer review             b. Checks and balances            c. Precheck stability
                 d. Quality control                                e. Twittering at work

            3.   Most chemical activity comes from

_______    a. Number of neutrons             b. Ionic weight or mass            c. Radioactivity
                d. Outer-shell electrons                        e. How ADD the atoms are

            4.  Both humans and Volvox, a small protist sphere, are considered colonial because

_______    a. They exist as groups of similar individuals
                b. They can move easily into new environments
                c. They exist as groups where individuals do different jobs
                d. All of the above
                e. They wander the world planting flags everywhere

            5.  When classification comparisons are based upon homology in molecules,
                        what’s often compared?

_______    a. Numbers of ions             b. DNA sequence             c. Isotopes
                d. Basic functions                        e. The what in the what now?

           6.  Which is using animal models?

_______    a. Testing rat intelligence with a maze
                 b. Genetically altering beef cattle

                 c. Getting a computer to simulate bee flight
                 d. Separating baby monkeys to understand isolation in children

                 e. Taking photos of really cute kittens for the internet

            7.   “All” of the energy-moving processes in a system is called

_______    a. Respiration             b. Metabolism            c. Ionization             d. Activity
                                        e. That crazy stuff that’s happening in there

            8.  Sting rays “fly” underwater with fins like wings – their resemblance to birds is a type of

_______    a. Accident             b. Shared ancestry            c. Homology             d. Analogy
                                                e. Setup for the next Sharknado sequel

            9.  The “ticking” of a molecular clock would be the

_______    a. Mutations             b. Genes             c. Energy change            d. Single generations
                                                        e. Then what’s the tocking?

            10.  Evolution is usually driven by

_______    a. A need for a certain feature             b. Changing conditions            c. Variation in a population
                d. Pre-set improvements                            e. Well, I guess you’d at least need a big truck...

            11.  Carbon dating isn’t reliable on objects over 60,000 years old because

_______    a. Too much has turned radioactive                    b. There’s almost no carbon left
                c. There’s almost no radioactive carbon left         d. Other materials have transformed into carbon
                                                e. Anything older always lies in its profile

            12.  Trying to figure out placebo effect in a drug trial involves

_______    a. Qualitative measurement             b. Quantitative measurement            c. Psychological tests
                d. Blinding                                                e. Reading everybody’s Facebook pages


Answer any eight of the following questions for 4 Points Each.
Note: if you answer more than eight, only the first eight will be corrected.
You can get partial credit on these answers.

1.  In the world’s ecosystems, there are mostly two basic first-level energy transformation processes. What are they?


2.  Put the following groups in order from the largest to the smallest: Class, Family, Genus, Kingdom, Order, Phylum, Species, Subclass, Superorder.
1 4 7
2 5 8
3 6 9

3.  What are the two basic forms of indirect observation?


4.  What does “ontogeny recapitulates phylogeny” mean?

5.  Technically, what is a gene?

6.  In disagreements about classification, what are scientists -

7.  In experiments, quantitative data is preferred over qualitative data. Give two reasons why this is so.


8.  What is the null hypothesis?

9.  What is the current best-accepted way of determining whether groups are separate species?

10. Label the following chemical reaction with the general terms for each part –
       A             +            B                            x       >                          C

__________          ___________         ______________            _____________

11.  Put these in order so that each group contains the ones before it: cells, organs, tissues.


12.  What two stages are necessary between reproductive stages of 2 generations of life cycles?


13.  In the experimental process, what is an artifact?

14.  Briefly explain how postmodernism applies to experiment design.

15. What are two basic features of the modern science system? (NOT looking for steps in the scientific method process here)



Answer any four of the following questions for Eight Points Each.
Note: if you answer more than four, only the first four will be corrected.
You can get partial credit on these answers.

1.  Give two different rules that apply to each in binomial nomenclature:



2.   For viruses -
2 Features they have that are also found in all living things -

2 Features all living things should have that viruses do NOT have -


3.   Give the following for asexual reproduction -
compared to sexual
compared to sexual

4.  Put these in order so that each later level contains the earlier ones: Community, Ecosystems, Individuals, Populations.


5.   All for the most common isotope –


How many




# 20

Column 2

How many


How many
(Uncharged form)

6.   For four of the six basic Kingdoms of Life, give the name of the Kingdom and enough features to clearly set that Kingdom's members apart from those of the other five.





7.   Answer the following about classic Scientific Method:
Two features a good
hypothesis should have

Role served by the
experimental variable
Purpose of the control

Link to Answer Key


Answer as many as you are able. Wrong answers will not result in points being lost from the main exam. You can get partial credit on these answers.

Where around here would you find the Volvox mentioned in the first part question? Three Points.

From how it’s written, what classification level is “Volvox”? Three Points.

How is a “classic” control test different from the experimental test? Three Points.

If your designed experiment comes back with the note “Anecdotal” on it, what will that mean? Three Points.

What is added if a test is triple blind? Three Points.

How did Alzheimer’s victims wind up with aluminum in their brains? Three Points.

How can ethics be a confounding factor? Three Points.

Embryos preserve similarities long gone in adults – why? Three Points.

What is uniformitarianism? Three Points.

Who was Karl von Linne? Three Points.

Why are some isotopes unstable? Three Points.

When is it good for your cells to produce free radicals? Three Points.

What class of vitamin is used to fight those potentially-damaging radicals? Three Points.



SCI 135 

Michael McDarby


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