SCI 135 - First Exam Fall 2019


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. In an ecosystem, what happens to the energy of sunlight?

________ a. It just supplies heat to keep water liquid
                b. Once in the system, it recycles again and again
                c. It gets lost as it works its way up the food chain
                d. It gets used, but only by plants
                e. It, um, makes daytime, right-?

        2. In testing a new pain reliever, you have subjects assign numbers to the strength
                            of their pain, so that

________ a. Qualitative data is made quantitative           b. Quantitative data is made qualitative
                c. The variable is valid                                  d. There’s a proper control
                                e. Your assistants can work on their fingers and toes

        3. In modern classification systems, close relationships between groups imply that they have

________ a. The same roles in an ecosystem                       b. Basic physical similarities
                c. Evolved from common ancestors recently        d. All the same cells
                                e. Probably gotten really sick of each other

        4. Sharks, dolphins, and ichthyosaurs look very similar because of

________ a. Convergent evolution         b. Divergent evolution        c. Linkage
                d. Sexual selection                         e. Lack of imagination

        5. When experimental results disagree with the original hypothesis, this goes under
                        what heading, according to classic Scientific Method?

________ a. Confounding factors         b. Nonevidence         c. Control        d. Null hypothesis
                                                            e. Things to ignore

        6. Which is an example of spontaneous generation?

_______    a. Baby snakes hatching from eggs           b. Amebas dividing
                c. A scar forming where a wound was       d. Snails forming from rocks on a stream bottom
                                     e. Politicians changing positions

        7. A classic control test must duplicate the experimental test except for

_______    a. How data is collected         b. The results         c. The basic procedure
                d. The variable        e. You have to use different background music

        8. All of the energy-using chemical reactions in a living system are combined in

_______    a. Its overall weight         b. Its respiration         c. Its metabolism
                d. Its waste production e. Some pipes somewhere

        9. Which best describes peer review?

_______   a. You check other scientists' work while designing an experiment
                b. You have co-workers in the lab check your results as you record them
                c. Each step in designing your experiment is checked by your supervisor
                d. You write up your results and have other scientists check them
                e. I guess a peer isn’t somebody who wets the bed, then...

        10. Postmodernism addresses which confounding factor?

_______    a. Bias         b. Logic         c. Chance         d. Lack of controls         e. Building cool fences

        11. A treatment which is like a real treatment but actually treats nothing:

_______    a. Sham         b. Mimic         c. Copy control         d. Placebo        e. A pretty rotten joke

        12. According to classic scientific method, what is the most important factor about a hypothesis?

_______    a. It should be testable                 b. It should be consistent with known theories
                c. Everyone must accept it            d. It should be well-presented
                            e. Whether it will lead to the big bucks


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. Briefly explain these two levels of experimental blinding – what’s going on?


2. Explain what it means when features in two different species are -


3. What are the two different basic processes found in producers? (First Level)


4. In science, what is an artifact?

5. From a biological standpoint, for a mouse, a mushroom, or a mulberry tree, what is the purpose of respiration?

6. What is represented by the split points of the “family trees” in these systems?


7. What are two different reasons why a test has to be a field test?


8. Put in order so that each one contains the one before it: Organs, cells, tissues.


9. What are two different aspects of virus chemistry that makes coming up with treatments for some viruses almost impossible?


10. What are two completely different classes of observation methods?


11. Put each part of this phrase in “regular” modern language: ontogeny recapitulates phylogeny.

12. When designing an experiment, what two different approaches are used to minimize the impact of chance on the results?


13. What is the most current, widely-accepted definition of a species?

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

15. Briefly explain why Evolution by Natural Selection depends upon variety in a population.

16. Why is it a mistake in science to say “good” results prove the hypothesis?

What is proper to say about such results?


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


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

3.  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.





4.    Give the following for asexual reproduction -





compared to sexual



compared to sexual


5. For different types of experimental models -



6. What are four different basic features of living things?



7.   All for the most common isotope –


How many




# 4

Column 2

How many


How many
(Uncharged form)

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.

What’s an example of a multicelled colonial species? Three Points.

Where were the first ecosystems based on chemosynthesis first discovered? Three Points.

What is adenosine triphosphate (ATP)? Three Points.

Most fossil species share two basic characteristics (other than being old and dead) – what are they? Three Points Each.

What did Redi think he really needed to keep out of his experiment? Three Points.

A study found aluminum in the brain tissues of Alzheimer’s patients. How did it get there? Three Points.

What is meant by the term anecdotal evidence? Three Points.

Give a common everyday example of quantitative data. Three Points.

What “person” was Karl Von Linne? Three Points.

What type of cell can’t be in multicelled systems? Three Points.

What produces the radiation in radioactivity? Three Points



SCI 135 

Michael McDarby


Hit Counter