BI 173 - Third Exam - 1999


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. Food vacuoles can be found
                            a. Only in sponges                                     
                            b. Only in protozoans
                            c. In both sponges and protozoans             
                            d. In sponges, protozoans, and cnidarians
                            e. After you've vacuumed the kitchen


_______ 2. Polar bodies are produced to
                            a. Split an embryo                         b. Discard sets of chromosomes
                            c. Mobilize sperm                         d. Secrete open-circulatory hormones
                                                        e. Test freezers


_______ 3. Which would be sessile?
                            a. Ameba and flagellate                         b. Polyp and medusa
                            c. Sponge and anemone                        d. Ciliate and medusa
                                    e. It's not up to us to judge their lifestyles...


_______ 4. The first thing that happens during an action potential (nerve impulse) is that
                            a. Membrane gates open                        b. Pumps activate
                            c. The membrane depolarizes                 d. Neurotransmitters are released
                                    e. The nerve fairy waves her magic action wand


_______5. Researcher (a) studies how grief is produced in the brain's limbic system, 
                                        while researcher (b) is interested in the adaptive value of grief, so
                            a. (a) studies proximate causation; (b) studies ultimate causation
                            b. (a) studies ultimate causation; (b) studies proximate causation
                            c. Both study proximate causation
                            d. Both study ultimate causation
                            e. Both need to get a life


_______6. Current theory places birds as a subgroup of the dinosaurs. A recent Chinese
                                        discovery of feathered, but non-winged dinosaurs would
                                        suggest that feathers in birds are what kind of feature?
                            a. Metameric         b. Ancestral         c. Derived         d. Generic
                                                                e. A patent violation


_______7. Crawling, tentacles, weight distributors, nets: all possible adaptations for
                            a. Cilia                     b. Choanocytes                     c. Gastrodermis
                            d. Pseudopods                         e. Beanie Babies


_______8. Excretion in Cnidarians is accomplished by
                            a. Flame cells                     b. Diffusion                     c. Amebocytes
                            d. Mesoglea                                 e. Pure force of will


_______9. A new species of animal apparently is a sexual reproducer, with gonads, 
                                        but you don't know which goes with which gender. The surest 
                                        way to tell is
                            a. Compare the associated structures       b. Look at the chromosomes
                            c. Compare the gametes produced          d. All of these are equally certain
                                               e. First you have to get really, really drunk...


_______10. Cytoplasmic receptors are set up for
                            a. Environmental vibrations                         b. Steroid hormones
                            c. Neurotransmitters                                   d. Polar bodies
                            e. The neuro-rays being beamed into your brain from Mars


_______11. This section through a turtle would be
                            a. Frontal             b. Longitudinal            c. Cross             d. Radial
                                                                        e. Painful


_______12. Spicules are a
                            a. Defensive feature in Sponges             b. Structural feature in Sponges
                            c. Defensive feature in Cnidarians          d. Structural feature in Cnidarians
                                        e. Gross side-effect of chewing tobacco


_______13. A relatively large animal with no central nerve system processor (brain)
                                        would most likely be
                            a. Dioecious                                             b. Bilaterally symmetrical
                            c. Monoecious                                         d. Radially symmetrical
                                                        e. Pretty doggone stupid


_______14. In comparing weapons used for intraspecies or interspecies aggression,
                            a. Intraspecies are generally bigger
                            b. Interspecies are generally bigger
                            c. Intraspecies are generally less lethal
                            d. Interspecies are generally less lethal
                            e. Licensing procedures are very bizarre


_______15. In vertebrate, the neocortex is involved in
                            a. Processing and coordinating motor commands
                            b. Analysis and decision making
                            c. Vital functions and the "unconscious mind"
                            d. Keeping automatic functions operating
                            e. That spasm you get when you trip in a near-waking dream


_______16. Proprioception is a sense of
                            a. Balance                                         b. Movement direction
                            c. Body position                                d. Underwater hearing
                                e. How useless all of this education nonsense is


_______17. Which is an allowable species name?
                            a. Canis canis         b. rattus rattus         c. gorilla Africanus
                            d. Felis Felis                         e. Harold


_______18. A single organism with functioning male and female systems is
                            a. Asexual                 b. Monoecious                 c. Dioecious
                            d. Parthenogenetic                         e. Probably in therapy


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. Name two different types of asexual reproduction.




2. Define and differentiate:
ENDOCRINE GLAND: EXOCRINE GLAND:

3. What is the basic adaptive advantage animals got from segmentation or metamerism?





4. What are the three basic evolutionary steps taken in the evolution of the vertebrate brain?





5. What are two fairly specific ("they're both animals is too general) characteristics found in pretty much all Sponges and Cnidarians?




6. What is the basic function of homeotic genes?





7. Put them in order, SMALLEST TO LARGEST: Class, Family, Genus, Kingdom, Order, Phylum, Species, Superclass.
1 2 3 4
5 6 7 8

8. What are two different ways that feedback might control endocrine function?




9. Name the two major types of advanced animal eyes.



  

10. Briefly explain how the threshold effect works as an action potential crosses a synapse.





11. What are the two basic chemoreception senses?





12. What other feature correlates with a species' typical production of offspring (number of young), and how does that feature change with offspring number?





13. Briefly explain how Ctenophores are currently having a major economic impact.





14. Name two basic sensory abilities found in some animals but not found in humans (abilities that are just better don't count).





15. What are four of the basic hormone action types?





16. Give a real-life example of imprinting.





17. What are two important functions of the hypothalamus?



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:
Invertebrate Central Nerve Cords Vertebrate Central Nerve Cords



2. Give three advantages of each:
Social Behavior: Nonsocial Behavior:
 

 
 

 
 

 

3. Give three sets of differences between:
PROTOSTOMES DEUTEROSTOMES



4. Give two types of organ, structure, or organ structure formed from each germ layer:
ECTODERM:
ENDODERM:
MESODERM:

5. From this sketch of a rat, fill in six of the following terms on the labels: Anterior, Distal, Dorsal, Lateral, Medial, Posterior, Proximal, Ventral.









6. For the major Protozoan subgroups (do three):
Subgroup Name - Official Distinguishing Characteristic Another Distinguishing Characteristic



7. Give six general characteristics of Protozoans.







LINK FOR 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 "impossible" ability was shown by flatworms in the infamous McDarby training experiment? Four Points.





If social insects are truly intelligent, in what fundamental way is that intelligence different from intelligence in other animals? Four Points.





What are two good evolutionary reasons why snakes do not have external ears? Three Points each.





What are the two aspects of bee dancing, and what information comes from each part? Eight Points.





What is one of the major reasons that Protists were "split off" into their own Kingdom? Four Points.





In what way can a sponge be barely more complex than a colonial protozoan? Four Points.





What happens when corals "bleach?" Four Points.





What three distinctly different causes of death (human) might be blamed on Cnidarians? Two Points each.

 

 

 

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