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SCI 135 - First Exam Fall 2015
Links in each number
connect to the pertinent sections of the
online book.
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.
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
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.
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1. In the world’s ecosystems, there are mostly two
basic
first-level energy transformation processes. What are they? |
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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 |
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3. What are the two basic forms of
indirect observation? |
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4. What does “ontogeny recapitulates phylogeny” mean?
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5. Technically, what is a
gene?
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6. In disagreements about classification, what are
scientists - |
ALLOWED
TO DO
EASILY? |
NOT USUALLY
ALLOWED
TO DO? |
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7.
In experiments, quantitative data is
preferred over
qualitative data. Give two reasons why this is so. |
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8. What is the null hypothesis?
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9. What is the current best-accepted way of
determining
whether groups are separate species?
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10. Label the following chemical reaction with the general
terms for each part – |
A + B
x
> C
__________ ___________ ______________ _____________ |
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11. Put these in order so that each group contains the ones
before it: cells, organs, tissues. |
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12. What two stages are necessary
between reproductive
stages of 2 generations of life cycles? |
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13. In the experimental process, what is an
artifact?
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14. Briefly explain how postmodernism applies to
experiment
design.
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15. What are
two basic features of the modern science
system? (NOT looking for steps in the scientific method process here) |
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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.
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1. Give two different rules that apply to
each in binomial
nomenclature: |
FIRST
WORD |
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SECOND
WORD |
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ENTIRE
NAME |
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2. For viruses - |
2 Features they have that are also found in all living
things -
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2 Features all living things should have that viruses do
NOT have - |
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3. Give the following for asexual reproduction
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BASIC
DEFINITION |
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ADVANTAGE
compared to sexual |
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DISADVANTAGE
compared to sexual |
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4. Put these in order so that each later level contains the
earlier ones: Community, Ecosystems, Individuals, Populations. |
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5. All for the most
common isotope –
How many
protons?
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40.08
Ca
Calcium
# 20
Column
2 |
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How many
neutrons?
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Typical
ion
form?
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How many
electrons?
(Uncharged form)
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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. |
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7. Answer the following about classic Scientific Method: |
Two features a good
hypothesis should have
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Role served by the
experimental variable |
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Purpose of the control
test
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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.
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.
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