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BI 173 - Third Exam - 2008
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. A significant amount of memory processing happens in the
a. Hypothalamus
b. Medulla
c. Spinal cord
d. Thalamus
e. Time it takes to listen to a sad song
_______ 2. A nematode's pseudocoelom has functions which are
a. Circulatory and skeletal
b. Digestive and circulatory
c. Sexual and skeletal
d. Sexual and circulatory
e. Nothing anybody wants to mess with
_______ 3. An advantage of compound eyes, compared to single-lens
systems, is that they
a. Have better resolution
b. Are better at detecting motion
c. Don't have to be centrally processed
d. Use less room
e. Give you a better overall interest payback
_______ 4. Proglottids produce
a. Tapeworm eggs
b. Tapeworm adults
c. Fluke larvae
d. Fluke adults
e. A catch in the throat
_______5. The threshold response at a synapse is connected to
a. The number of impulses that reach it
b. The amount of neurotransmitters released
c. The number of receptors activated
d. All of the above
e. Some language I've never seen before
_______6. Which group includes autotrophs?
a. Protozoa
b. Cnidaria
c. Platyhelminthes
d. Porifera
e. Cars are alive?
_______7. Which would be most likely to have protonephridia?
a. Jellyfish
b. Turbellarian
c. Glass sponge
d. Ameba
e. Republicans
_______8. Mesoderm is necessary to really have
a. Organ systems
b. 2-opening digestion
c. Filter feeding
d. A free-living lifestyle
e. A chance on American Idol
_______9. Which would be mostly interneurons?
a. Cerebellum
b. Ear
c. Synapses d.
Muscle connections
e. Interns' what now-?
_______10. Which would have a contractile vacuole?
a. Mediterranean sponge
b. Photosynthetic flagellate
c. Freshwater ameba
d. Fluke e.
Features require contracts now-?
_______11. Which type of behavior is stereotyped, learned early,
and has a critical time "window"?
a. Display
b. Agonistic
c. Ritualistic
d. Imprinting
e. All of that?
_______12. A main confounding factor in ethology is
a. That morals vary by culture
b. The presence of researchers
c. Laboratory conditions may vary in ways researchers can't detect
d. Impact of animal-rights groups on study methods
e. That I don't remember what it is
_______13. Neurons become nerves when they are
a. Bundled
b. Insulated
c. Centrally connected
d. Split
e. Too dumb to do anything else
_______14. In an axon during an action potential
a. Ions are pumped out
b. Ions are pumped in
c. The membrane becomes charged
d. The membrane becomes uncharged
e. There is always a car chase
_______15. Which is true for communication in non-human animals?
a. It is totally instinctive, no learning
b. It always uses senses the communicating animal has
c. It can be a part of ritualized behavior
d. All of these
e. When they learn to text, it's all over for us
_______16. Many people believe bulls only charge at red objects. They don't, but
if they did, red would be a
a. Proximate releaser
b. Ultimate releaser
c. Sign stimulus
d. Fixed stimulus
e. Bad color for overalls
_______17. Colonies are common in
a. Sponges and corals
b. Sponges and amebas
c. Trematodes and corals
d. Corals and flagellates
e. History books
_______18. Choanocytes are involved in
a. Structure
b. Filter feeding
c. Reproduction
d. Defense
e. Need a dart and a dartboard...
SHORT ANSWER.
Pick TEN Questions to answer in the spaces provided.
NOTE: if you answer MORE than ten, only the first ten will be corrected.
Four Points each. Partial credit is possible.
| 1. Explain how the pancreas functions as
an - |
EXOCRINE
GLAND
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ENDOCRINE
GLAND
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| 2. For malaria, give the - |
INTERMEDIATE
HOST
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DEFINITIVE /
FINAL HOST
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| 3. What's the most likely place to find an animal
with a wheel organ?
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| 4. In the typical nervous system
response loop, what two different structures are effectors? |
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| 5. What two factors determine
whether a species is territorial? |
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| 6. What two different
factors affect the speed of an impulse on an axon? |
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| 7. Vertebrate central nervous
processors are thought to have evolved through what three stages?
(In order) |
| 1 |
2 |
3 |
| 8. Explain what it means if an organism is benthic
but not sessile.
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9. Briefly explain why there are probably more
nematode species than species from any other phylum.
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| 10. The three stages of an
impulse on an axon: |
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2 |
3 |
| 11. Define: tropic hormones.
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12. What has to be present in the
environment for schistosome flukes to spread from
human to human?
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| 13. What are two different general
classes of hormone action? |
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14. What happens in a nerve net that
doesn't happen in other types of nervous systems?
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| 15. Give the basic function
of each - |
MICRONUCLEUS
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MACRONUCLEUS
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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.
Six Points Each. Partial credit is possible.
| 1. Give three different advantages
for each. (Not looking for comparative sets here!) |
| SOCIAL BEHAVIOR |
NONSOCIAL BEHAVIOR |
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2. What are three different
general characteristics
found in platyhelminths but
not
in poriferans or
cnidarians?
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3. What are six different types of
environmental input that can be perceived with animal senses?
(Different means that fairly different types of receptors are used) |
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4. What are three fairly "primitive"
features
found in both
poriferans and cnidarians?
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| 5. What are the group names of the
four major groups of protozoans? |
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| 6. Give three sets of differences
between the typical central nervous systems of... |
| Invertebrates |
Vertebrates |
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| 7. For three different types of
nematodes, give the species, subgroup, or common name and
then one feature for each that makes them unusual, even
compared to other nematodes. |
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| 8. For alternation of generations,
give two different - |
| REASONS ORGANISMS DO IT |
GROUP USING THIS REASON |
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Link to
Answer Key
BONUS QUESTIONS.
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.
What sort of behavior did the experimental flatworms show that they
should not have been able to? Three Points.
What piece of the vertebrate forebrain is considered to house the
"unconscious mind"? Three Points.
What is the "McDarby hypothesis" of REM sleep? Three Points.
What is the "waggle dance," (3 points), what are the parts (2
points each), and what does each part mean (2 points each)?
Why is ciliate sex essentially suicide? Three Points.
Which cnidarians are typically octoradially symmetrical? Three
Points.
What does platyhelminthes mean? Three Points.
Nematodes are mentioned in The Bible, using what two-word description?
Three Points.
A caduceus - a) what is it today? b) what was it originally? Two Points
each
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