BI 173 - Third Exam - 2001

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 hormone whose receptors are cytoplasmic should be
                        a. Carried in the lymph system                         b. Pheromone-related
                        c. Lipid-soluble                                               d. Tropic
                        e. Aware that this is nothing to be embarrassed about

_______ 3. In vertebrates, much of the monitoring of ongoing physiological levels is
                                    done in the
                        a. Hypothalamus                 b. Medulla                 c. Cerebellum
                        d. Spinal cord                                 e. Surveillance center

_______ 4. In most disagreements about a group's taxonomy,
                        a. Both names and designations can be changed together
                        b. Names and designations can be changed, but not simultaneously
                        c. The names can be changed but not the designation
                        d. The designation can be changed but not the name
                        e. The people involved are nerdy beyond belief

_______5. A typical brain would be made up of
                        a. Sensory neurons and motor neurons only
                        b. Only sensory neurons
                        c. Only interneurons
                        d. Sensory neurons and interneurons
                        e. Lots of gray stuff

_______6. In general, what tends to be true of animal weapons?
                        a. Nonlethal                         b. Intraspecies nonlethal, interspecies lethal
                        c. Lethal                              d. Intraspecies lethal, interspecies nonlethal
                        e. I guess I should have paid attention when "inter" and "intra" were defined...

_______7. Which is produced by opening gates in the cell membrane?
                        a. Hormone effect                                 b. Neurotransmitter release
                        c. Resting Potential                                d. Action Potential
                        e. Everybody singing, "Who let the submicroscopic particles out?"

_______8. By definition, a monoecious animal would be
                        a. Both male and female                             b. Asexual
                        c. Self-fertilizing                                         d. All of these, a - c
                                    e. A bad animal to kiss, infective for mono

_______9. Which type of animal is most likely to rely upon symbiotic organisms for a
                                    significant contribution to their digestive abilities?
                        a. Insect eater             b. Fruit eater             c. Grass eater
                        d. Fish eater                         e. Pizza food eater

_______10. It has been found that, to draw a bull's charge to a cape, a matador must stand
                                    still or concealed and shake the cape, which can be any color. 
                                    In this instance,
                        a. The matador is the sign stimulus and the bull is the releaser
                        b. The cape is the sign stimulus and the bull is the releaser
                        c. The bull is the sign stimulus and the cape is the releaser
                        d. The shaking is the sign stimulus and the cape is the releaser
                        e. The bull would be better off staying in bed

_______11. Which is an allowable species name?
                        a. rattus Mcdarbius                             b. Rattus Norwegius
                        c. Rattus rattus                                    d. rattus disgustus
                                                        e. Horatio

_______12. Impulses can travel in both incoming and outgoing directions on the same
                                    neurons in
                        a. Nerve nets                                               b. Peripheral nervous systems
                        c. Neurosecretory cells                                d. Spinal cords
                                          e. The wee small hours of the morning

_______13. Absorbed materials are modified for body use in the
                        a. Liver                         b. Kidneys                         c. Gills
                        d. Diverticula                             e. Upgrade center

_______14. Which scientist is most likely to be an ethologist?
                        a. One studying rats in mazes
                        b. One scuba diving to observe sea turtles
                        c. One inserting probes into various squid nerves
                        d. One studying comparative DNA of wild populations
                        e. One who looks up when you say, "Which one of you is the ethologist?"

_______15. From a single starting cell's meiosis, how many of each type of gamete can 
                                    be made?
                        a. Four sperm or four egg cells
                        b. Four sperm or two egg cells
                        c. Four sperm or one egg cell
                        d. Huge numbers of sperm or one egg cell
                        e. Could I have two dice, please -?

_______16. Which is most likely to involve homeotic genes?
                        a. Determining leg placement                      b. Expressing metabolic hormone
                        c. Putting an insect into metamorphosis       d. Reproductive display behavior
                        e. That's just a couple of letters from being a really bizarre question...

_______17. Hydrolysis is one of the main processes in
                        a. Hormone action                                     b. Neurotransmitter release
                        c. Gamete production                                d. Digestion
                                                    e. Greeting Drolysis

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.

2. Give two features associated with spiral cleavage.

3. What are two commonly-offered examples, from different groups, of highly-intelligent invertebrate animals?

4. Briefly explain (don't define!) the adaptive advantage of segmentation / metamerism.

6. Briefly explain the difference between-

7. What are the two basic senses that involve detection of molecules?

8. What two features of neurons can produce a faster impulse speed?

10. What is it about a tube digestive system that makes it such an improvement over a sac digestive system?

11. What are four different types of materials whose circulating levels may be affected by hormones?

12. Briefly explain how sensitization works.

15. In what way does a stomach function as part of an animal's defense system?

16. Give two examples of environmental stimuli that humans have no ability to detect (do not use examples of low levels where humans just aren't sensitive enough to pick them up).

17. What two criteria are necessary for something to be considered a vitamin?

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.

2. Name and briefly describe three of the major types of feeding processes (the major types, not the subtypes!).

3. Place the following anatomical terms where indicated on the figure: anterior, distal, dorsal, posterior, proximal, ventral.

______________________                                                  ______________________

______________________                                                 ______________________

4. What are six different types of sensory receptors?

6. Name three digestive canal regions, and for each name one major organ or structure that can be found in that region in animals.

7. What are three distinct, different advantages that nonsocial animals tend to have in comparison to social animals?

8.  Give three sets of differences used to differentiate between:

ANSWER KEY, CLICK HERE

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, other than psychological problems, is well-known to produce a desire in humans to eat dirt? Three Points.

What happens to myelin in muscular dystrophy? Three Points.

What behavior pattern is thought to have brought about the evolution of cephalization?

Some educators cite a biological reason for teaching foreign languages in elementary school.  Explain briefly, including the relevant biological term. Three Points.

For Three Points Each, what sorts of mating conditions probably led to the evolution of internal fertilization?

Carolus Linnaeus: For Three Points, his real name -

For Three Points, his non-taxonomic research area -

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