BI 173 - Third Exam - 2006
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. Which would be very unlikely to reproduce sexually?
a. Sponge
b. Ameba
c. Apicomplexan
d. Cnidarian
e. I’d rather not name names - it’d be mean
_______ 2. Intraspecies weapons are unlikely to
a. Be physical
b. Use toxins
c. Be lethal
d. Be nonlethal
e. Be available on eBay
_______ 3. The continuation of an action potential on the "far" side of a synapse involves
a. A threshold effect
b. A ciliated current
c. Contact between the membranes
d. Contact between the insulation
e. Presentation of very odd passports
_______
4. If a study found that just a three-note sequence in
a male bird’s song
determined if the
female would be receptive to mating, that sequence would be a
a. Epicentric element
b. Fixed pattern initiator
c. Sign stimulus
d. Releaser
e. Good addition to a pop song
_______5. Hormones are produced by
a. Exocrine glands and neurosecretory cells
b. Exocrine glands and endocrine glands
c. Endocrine glands and neurosecretory cells
d. Exocrine glands only
e. Wait, there’s an old nasty joke about that...
_______6. Autotrophs are found in the
a. Cnidaria
b. Protozoa
c. Porifera
d. Platyhelminthes
e. Garage-o-podia
_______7. Imprinting is a type of
a. Digestive adaptation
b. Nerve pattern alternation
c. Learned behavior
d. Hormonal feedback process
e. Pre-photocopying thingee
_______8. What effect does axon size have on impulse speed?
a. Larger = faster
b. Smaller = faster
c. No effect
d. No effect unless the axon is insulated
e. Medium
_______9. Ritualized behavior is often used to avoid
a. Territoriality
b. Pheromone release
c. Reproductive submission
d. Agonistic behavior
e. Homework
_______10. An ethologist would generally be engaged in
a. Field studies
b. Microscopic observation
c. DNA analysis
d. Surgical procedures
e. Stuff that would bore everyone else
_______11. Which are sessile?
a. Ameba and medusa
b. Sponge and coral
c. Hydra and medusa
d. Ciliate and flagellate e. What they
do in the privacy of their own habitat is their business
_______12. Which are most closely related?
a. Flagellates and sponges
b. Flagellates and ciliates
c. Ciliates and apicomplexans
d. Flagellates and amebas
e. It would help if I knew what these were, right-?
_______13. Target cells are generally associated with
a. Stereotyped behaviors
b. Brain processing centers
c. Hormones
d. Digestive enzymes
e. Um, arrow cells-?
_______14. A progression of linear to nodal to parallel is found in evolution of
a. Digestive processes
b. Central nervous processes
c. Hormonal connections
d. Embryonic cell layers
e. Etch-a-sketch devices
_______15. Hormone receptors
a. Are always on the cell membrane
b. Can be on the membrane or in the nucleus
c. Are actually in the mitochondria
d. Are not on cells, but are in connective tissue matrix
e. Are a good thing to have...somewhere...
_______16. Emotions strongly figure into the processing of the
a. Medulla
b. Cerebellum
c. Neocortex
d. Paleocortex / limbic system
e. Distraught student
_______17. Choanocytes are involved in which function?
a. Defense
b. Feeding
c. Display
d. Repair
e. Giving biologists words they can use to confuse students
_______18. Which goes through alternation of generations?
a. Malaria and coral
b. Sponge and ciliate
c. Sponge and ameba
d. Ameba and hydra
e. Whichever is most open to alternative lifestyles
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. What are two major functions of the vertebrate hindbrain? | |
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| 2. Under what general structural
conditions can diffusion function perfectly well for exchange
purposes in multicelled animals?
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| 3. What are two different general classes of hormone action? | |
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| 4. What are two different materials that spicules can be made of? | |
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| 5. In many radially-symmetrical animals, what terms substitute for dorsal and ventral? | |
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| 6. Explain, with some detail, why
emulsifiers are often necessary to proper
digestive function.
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| 7. What are two different functions that are done with pseudopods? | |
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| 8. What are two distinctly different classes of displays? | |
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| 9. What are two characteristics that medusae generally have but polyp forms do not have? | |
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| 10. Briefly describe the function
of a tropic hormone.
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| 11. Give the primary functions for each: | |
| MACRONUCLEUS:
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MICRONUCLEUS:
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| 12. What are two advantages that a tube digestive system has over a sac system? | |
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| 13. What is meant by the term
proximate causation?
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| 14. What are two distinctly different functions performed by the hypothalamus? | |
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| 15. Briefly explain the steps
that produce an action potential (you do not have to explain the
other stages, just the impulse happening).
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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 sets of differences between the typical central nervous systems of... | |||
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Invertebrates |
Vertebrates |
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| 2. What are three fairly "primitive" features found in both poriferans and cnidarians? | |||
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| 3. Name three regions along the basic animal digestive canal. For each, give an organ or structure that belongs to that region. | |||
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| 4. What are six different general classes of nutrients? | |||
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| 5. List six animal senses that are picking up distinctly different types of information. | |||
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| 6. Give three clear general advantages for each - | |||
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NONSOCIAL BEHAVIOR |
SOCIAL BEHAVIOR |
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| 7. What are the five steps of structures associated with the processing that occur in a typical nervous system? | |||
| 8. What are three different general characteristics found in platyhelminths but not in poriferans or cnidarians? | |||
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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.
Why do humans and pigs have several parasites in common? Three Points.
Animal intelligence in a species usually seems to arise out of what basic behavior? Three Points.
What is most likely happening in our brains as we dream? Three Points.
What drug exerts most of its effects on the hypothalamus? Three Points.
The myth about "we only use 10% of our brains" is based upon what actual fact? Three Points.
Why is sexual reproduction in protozoa equivalent to suicide? Three Points.
If mesoglea were considered to be a tissue, which type would it be (Two Points), and why? (Three Points)
In multicellular animals, the term colonial changes meaning somewhat. What in particular changes? Three Points.
How did invasive ctenophores probably wind up in the Black Sea? Three Points.