BI 173 - Second Exam - 1997


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. Bony fish are more or less "waterproof" to prevent
                           a. Water loss in the air                         b. Inflow of water to tissues
                           c. Outflow of water from tissues           d. Loss of oxygen
                                       e. Am I in trouble if none of this makes sense?


_______ 2. How do impulses on a large axon compare to those of a small axon?
                                   They are
                           a. Bigger             b. Smaller             c. Slower             d. Faster
                                               e. Always more bizarre in California


_______ 3. Flame cells are a part of
                           a. Respiratory surfaces                             b. Protonephridia
                           c. Digestive systems                                 d. Kidneys
                               e. Animals with really high body temperatures


_______ 4. Platelets perform the same function as
                           a. Thrombocytes             b. Hemoglobin             c. Neurons
                           d. Symbionts                         e. China, stoneware or Corelle


_______5. One trait that sets mammals apart from all other animal groups is their
                           a. Skeletal system                                     b. Teeth
                           c. Circulatory system                                d. Nervous system
                                                      e. Need for banking


_______6. Which is true about vertebrate integument?
                           a. It has epidermis but no dermis
                           b. It has dermis but no epidermis
                           c. It has both dermis and epidermis
                           d. It has neither dermis nor epidermis
                           e. It has way too many syllables for just two words


_______7. The system of air sacs found in birds gives them
                           a. Increased respiratory surface             b. More metabolic oxygen
                           c. Reduced weight                                 d. All of these
                               e. The possibility of being bird-brains and airheads


_______8. What is the function of vitamins?
                           a. Help enzymes                                           b. Be part of proteins
                           c. Catalyze metabolic reactions                     d. Osmotic regulation
                                       e. Depends - is it Fred, or Barney, or Dino?

 

_______9. Food can be moved along a system with muscular contractions called
                           a. Fibrillars                 b. Countercurrents                 c. Peristalsis
                           d. Villi                                         e. Burplets


_______10.  Oxygen debt is something found in
                           a. Water-breathing animals                         b. Muscle tissue
                           c. Crawling animals                                    d. Nervous tissue
                    e. It will be found on April 15th when the government figures out how to tax it


_______11. Which tissue is characterized by having one side facing a space?
                           a. Connective                 b. Muscle                 c. Lining
                           d. Epithelium                         e. Don't tissues face a nose?


_______12. More advanced excretory structures usually begin their processing with
                           a. A closed pump             b. An open filter            c. Pure osmosis 
                           d. All of these            e. Do we have to talk about this sort of stuff-?


_______13. A cutaneous respirer probably has
                           a. A wet environment                         b. High oxygen requirements
                           c. An open excretory system              d. An anaerobic system
                                                      e. Other bad habits


_______14. A nerve impulse or action potential directly involves
                           a. Sensory stimulus                     b. Depolarization of the membrane
                           c. Pumping of ions                      d. Mobilization of oxygen
                                       e. Lots of stuff that no one can remember


_______15. Which type of muscle tissue is typically that least powerful, cell for cell?
                           a. Skeletal             b. Fibrillar             c. Smooth            d. Cardiac 
                                                      e. Popeye's, before spinach


_______16. Hemolymph would most likely be found in an animal with
                           a. An exoskeleton             b. Lungs            c. A marine habitat 
                           d. An endoskeleton                    e. Hemolymph inside it


_______17. Myelin is a
                           a. Muscle protein                 b. Skeletal molecule
                           c. Nerve insulator                 d. Digestive enzyme
                           e. Person who designed the Viet Nam War Memorial


_______18. Very small organisms commonly respire and excrete using
                           a. Diffusion                             b. Contractile vacuoles
                           c. Cilia                                    d. Golgi bodies
                                                  e. Extreme care


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. There are three primary methods of movement used by animals. Name two.




2. What are two common but different types of countercurrent systems?




3. What exactly is a hydrostatic skeleton?




4. Give one advantage and one disadvantage particularly associated with being endothermic.

Advantage:


Disadvantage:


5. What is the biological purpose of hunger?




6. What two features are essential to a respiratory surface?




7. Briefly explain the concept of serial homology.




8. What are two behavioral adaptations used by ectotherms to maintain homeostasis?




9. Which type of body organ system is most likely to rely on a closed circulatory system but not on an open circulatory system?




10. Marine animals are very likely to be osmotic conformers. Explain why.




11. A notochord can serve one of two functions in animals - name one.




12. Define filter feeding.




13. What are two basically different ways that an immune response can work?




14. What is histology?




15. What are the two functions usually performed by a lymphatic system?




16. What potential advantage comes from a tube digestive system?




17. Malpighian tubules are found in what sort of animal, doing which basic function?

Animal type:                                                Function:

 

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. Name three digestive canal regions, and give one organ or structure that would normally be associated with each.



2. Each of the two major types of skeletons has advantages over the other. Name the two types and give the two advantages for each.

   

   

3. Pick three endotherm adaptations to cold environments and briefly explain how each adaptation gives an advantage.


  

 

 

4. Vertebrate blood plasma carries many dissolved materials. Give six different functions that are performed by such materials (you need to give functions, not name the molecule types).


  

 

 

5. Name and give the major function of the three different cellular elements in vertebrate blood.





6. Integument has many basic functions - what are six?

 

 

 

7. List the three primary excretory products of animals, and for each, give one benefit an animal gets from excreting that particular product.


8. In order, what are the structures involved in a response to an environmental stimulus?

Stimulus:






                                                                                                                    Response.

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 is the fifth type of animal tissue, that somehow did not make it onto the study sheet? Three Points.



What two "staging areas" were the likely habitats of the animals that were direct ancestors to the land animals? Three Points Each.




Some tiny blood parasites circulate for years without being removed by our immune systems. How do they prevent us from clearing them out? Four Points.




Water animals whose direct ancestors were land animals are not likely to evolve some sort of gill system. What is the best explanation for this prediction? Four Points.




In what way can biology reflect human chauvinism? Define rather than give examples. Three Points.




What Southern U.S. problem led to the widespread eating of dirt about 100 years ago? Two Points.




What structures in squid have made them excellent research tools? Three Points.

 

 

 

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