SC 135 - First Exam Fall 2003

MULTIPLE CHOICE. 

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. What is the purpose of an experiment being done either on many

individuals or repeated many times?

_______   a. It’s the only way to have quantitative data
                    b. It reduces the role of Chance as a confounding factor
                    c. It provides greater peer review
                    d. It strengthens the hypothesis
                    e. It uses up more grant money

 

2. Which one is mostly psychological?

_______   a. Qualitative data             b. Null hypothesis            c. Quantitative data 
                 d. Placebo effect                                            e. Exam terror

 

3. Two isotopes of the same element differ in their

_______   a. Neutrons                 b. Chemical stability                c. Electrons 
                 d. Bonding                                                e. Love of golf

 

4. The great evolutionary advantage to sexual reproduction is found in

_______   a. Efficiency of mate finding                             b. Its complexity
                     c. Efficiency in energy use                               d. Variety in offspring
                                        e. It’s just...it’s just...y’know, better

 

5. The difference between an experimental test and a control test should be -

_______   a. Form of the results                             b. Presence of the variable
                    c. Type of observation used                   d. Conclusions drawn
                                        e. How much money you spend on it

 

6. Along a typical food chain

                    a. Materials and energy get passed along and eventually recycled
                    b. Materials only get passed along and eventually recycled
_______      c. Energy only gets passed along and eventually recycled
                    d. Neither materials nor energy get recycled
                    e. You rarely find organisms chewing gum

 

7. All of the living things in a given area are together called

_______   a. An ecosystem                 b. A population                c. A community 
                    d. A colony                                                        e. "Fred"

 

8. Which is an allowable species name?

_______  a. lyonus densus                 b. Hopius Faithius            c. missa Matcha 
                d. Joania arcadia                  e. This question sponsored by the new tv season

 

9. Water is most dense at which temperature?

_______   a. 4oC / 40oF                 b. 100oC / 212oF                 c. -100oC / -150oF
                    d. 0oC / 32oF                         e. I’m feeling a little dense myself...

 

10. Which is most likely to be applied science?

_______   a. A mission to Mars                 b. Medical research            c. Study of local salamanders 
                 d. Fossil studies                                    e. Any science rubbed directly into the scalp

 

11. The concept of mutations is important in evolution because

_______   a. All variation comes from them
                    b. They drastically change variation in a group
                    c. They affect the basic environment
                    d. Dramatically new traits can come from them
                    e. So many great monster movies are based on them

 

12. Which bond is an attraction between partial charges?

_______   a. Ionic                     b. Hydrogen                    c. Covalent 
                 d. Electric                                            e. Wimpy

 

 

SHORT ANSWER. 

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. What is the purpose of basic cell-level respiration? Be somewhat specific.

 

 

2. Give an example of an organism-to-organism relationship type that can significantly affect how structures evolve.

 

 

3. Put in order from simplest to most complex - cells, organ system, organ, tissue.

1

2

3

4

4. What are ionic solids rarely found in biological systems?

 

 

5. When disagreements about the classification placement of a group arise...

What is a

biologist

allowed to do?

What are they

not allowed

to do?

6. Two different features that a good hypothesis needs -

 

 

7. How are evolutionary "splits" determined in these two approaches?

CLADISTICS

 

SYSTEMATICS

8. If an organism is going to become a fossil, what is the most likely thing that will happen to it soon after it dies?

 

 

9. What are the two different common types of models used in biology experiments?

 

 

10. What are two different features of viruses that make them hard to fit on the list of features of organisms?

 

 

11. Put the following groups in order from largest to smallest: Class, Family, Genus, Kingdom, Order, Phylum, Species, Subphylum, Superorder.

1

4

7

2

5

8

3

6

9

12. What is anecdotal evidence?

 

 

13. What happens in an oxidation reaction?

 

 

14. What is the main weakness of the fossil record as evidence of evolution?

 

 

 

LONG ANSWER. 

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 three sets of differences between -

EGG CELLS

SPERM

 

 

 

 

 

 

2. Fill in the labels for basic levels of the food chain -

 

             ___________________       ---------->       ____________________     ------->
               Original Energy Source                                        First Level

 

---->     ____________________      ----------->     _____________________
                     Next Levels                                                  Final Level

3. For the molecule below, label which atoms are in each box - they are either Carbon, Hydrogen, Nitrogen, or Oxygen.

 

This was a drawing with boxes representing the atoms and bonds connecting the boxes - it's the number of bonds on each box that can be used to tell which atom is in there.

 

 

 

4. For four of the book’s six Kingdoms, give the Kingdom’s name and enough characteristics features to distinguish each Kingdom from any of the six others.

 

 

 

 

 

 

 

 

5. Briefly describe four different ways that are used to determine relationships among groups of organisms

 

 

 

 

 

 

 

 

6.

24.305

 

Mg

Magnesium

 

12

Column 2

How

many

protons?

How

many

neutrons?

How

many

electrons?

(Radical form)

Typical

ion

form

Link to Answer Key

BONUS QUESTIONS. 

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 was recently discovered about psychological research on rats? Three Points.

 

 

How are footprints fossilized? There are a few steps. Five Points.

 

 

When germs were connected to disease, where did folks first think they came from? Three Points.

 

 

Which was the third Kingdom named, and which Kingdom was the third one in before it became a separate one? Four Points.

 

 

Beta radiation happens when a neutron disintegrates, spitting out an electron and leaving an extra proton where the neutron was. What would this do to the element’s position on the Periodic Table? Three Points.

 

 

What is it about free radicals that makes them so unstable? Three Points.

 

 

Why is the atmosphere almost 75% Nitrogen? Three Points.

 

 

Pick a single property of water - tell which it is, and for Four Points explain why that property is critical for Life on Earth.

 

 

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