BIO 170  - Fourth Exam  - 2019

 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 is generally true of weapons used in male-male competition within the same species?

                        a.   Likely to kill                                             b.  Involve  tissue trauma
                       c.   Poisonous                                                 d.  Not likely to kill
                        e.   Illegal in most states

_______ 2.
  A major function of saliva is to

                        a.  Digest most molecules                   b.  Treat with antibacterials
  Aid chewing action                        d.  Aid swallowing action
e.  Keep people at a respectful distance


_______ 3.  An excretory structure that moves through hemolymph and drains into the intestine:

                        a.  Malpighian tubules                           b.  Protonephridia
  Nephrons                                        d.  Glomerulus
e.  I’m not sure, but I don’t think a plumber could fix it


_______ 4.  An exocrine gland is most associated with

                        a.  Synapses                                        b.  Ducts
  Circulation                                     d.  Lymph
e.  Leaving stains on the carpet

_______5.  Which are most likely to employ countercurrent systems?

                        a.  Gills and heat exchangers
  Protonephridia and subcutaneous repiration systems
  Hormone receptors and synapse receptors
  All of the above
                        e.  The latest in Space-Age toilets!

_______6.  One of the most advanced nervous systems found in invertebrates
                 may involve distributions across a

                        a.  Web                                                b.  Colony of brains
c.  Variety of species                          d.  Shell inner support structure
                        e.  Range of social media platforms


_______7.  Small particles are eaten from passing water by

                        a.  Deposit feeders                              b.  Fluid feeders
  Circulatory feeders                         d.  Filter feeders
e.  Animals too proud to apply for government assistance


_______8.  Diverticula are a site for which process?

                        a.  Gas exchange                                 b.  Waste secretion
  Bacterial fermentation                     d.  Impulse message distribution
e.  Wiping all classroom knowledge from the memory


_______9.  Linear to nodal to parallel is a progression found in

                        a.  Vertebrate brains                            b.  Excretory systems
  Invertebrate brains                         d.  Digestive systems
e.  High  school mathematics curricula


_______10.  The need of a wider range of enzymes is a disadvantage of

                        a.  Endotherms                                    b.  Water breathers
  Ectotherms                                     d.  Air breathers
            e.  Most new food products


_______11.  Ethology is the study of

                        a.  Animal behavior in natural conditions
b.  Simulated colonial structure
c.  The moral aspects of scientific research
d.  The whole of scientific literature
e.  It’d be easier if a choice started with “e”…


_______12.  Hormonal effects are often controlled through

                        a.  Peripheral nerves                            b.  Feedback
  Enzymatic processing                    d.  Synaptic conjunctions
e.  Lots and lots of cold showers


  Male stickleback fish respond violently to other male fish,
only if they have a red spot marking.

                        a.  The other fish is the releaser, the spot is the sign stimulus
b.  The spot is a warning display
c.   The fish is the sign stimulus, the spot is the releaser
d.   This is a learned response to other fish
e.   There should have been a warning about fish violence


_______14.  Why are there no water-breathing endotherms?

                        a.  Their metabolic energy needs are too low
  Oxygen dissolves badly in water
  All endotherms are land-living
  All of the above
e.  It's the bathing  -  they hate it


_______15.  Which is true about hunger?

                        a.  It is never hormonally controlled
  It is directly connected to excretion
  It can be very nutritionally specific
  It is not a feature of simple animals
e.  Uh, if you eat, it goes away -?


_______16.  A very large sensory input is sent as

                        a.  A large impulse                              b. A sequence of impulses
  A fast impulse                                d.  More neurotransmitters
e.  It depends - is it a good input or a bad input?


_______17.  A system of arteries, veins, and capillaries would be

                        a.  Closed                                            b.  Open
  Excretory                                        d.  Respiratory
e.  Okay with a light pesto sauce and some garlic


_______18.  Peacock tails and expensive cars can both be used as examples of

                        a.   Agonistic behavior                        b.   Gender-specific inheritance
c.   Sensitization                                  d.  Handicap theory
                        e.   Things folks put on Instagram


Short Answer.    Pick NINE questions to answer in the spaces provided.

NOTE: if you answer MORE than nine, only the first nine will be corrected. 
Four Points each.   Partial credit is possible.

1.  What do the two types of balance – equilibrium actually detect?




2.  Other than comparing lens numbers, give one way that single-lens eyes differ from compound eyes.



3.  Many marine animals are osmotic conformers.  Explain what this means.




4.  What are two features found commonly, separately or together, in the respiratory surfaces of cutaneous respiration animals?





5.  What are the two general types of hormone receptors?





6.  What’s the association between a bony skeleton and a swim bladder?




7.  How does imprinting work?




8.  What is meant by a threshold effect?




9.   Briefly explain the functional connection between a tracheal system and an open circulatory system.   



10.  Generally, where are the target cells for tropic hormones?



11.  Two different senses that use chemoreceptors -





12.  What sort of transport system is commonly used in very small animals?




13.  What are two sensory abilities that humans don't have but may be found in some animals?





14.  What are the two major functions of a notochord?





15.  Bile helps to emulsify fat.  Why exactly does it need to be emulsified?

16.  What are two methods by which massed food gets eaten?





17.  What are two different types of structures found in vertebrate dermis?





18.  What are two different types of hormone actions?






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.
Seven Points Each.
  Partial credit is possible.

1.  List three parts of the vertebrate forebrain and for each, give a single function.











2.  There are three major excretory products in animals.    Name two, and for each give one advantage and one disadvantage.

















3.  Describe, with names, the steps followed by an impulse from stimulus of a sense receptor to response of an effector.










4.  What are five different possible functions of integument?










5.   List, in order, the five common digestive regions found along a tube system.










6.  Central nervous systems differ in basic construction between major vertebrate and major invertebrate groups.  Give three pairs of differences.













7.  Give three advantages that each has over the other.
















8.  Name and briefly describe what happens in the stages of a nerve impulse.













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 most important visual aspect of warning colors?  Three Points. 


What human structure has essentially a hydrostatic skeleton?  (No, not that one) Three Points.


In humans, what cells other than skeletal muscle often can go into oxygen debt?  Three Points. 


Under what situation would albumin be added to the plasma?  Three Points. 


What aspect of inflammation generates the main danger in analphylactic shock?  Three Points. 


Why is a flame cell called that?  Three Points. 


It used to be thought that vertebrates replayed their evolutionary history during embryo development.  One type of structure especially seemed to support this, as one appeared just to be replaced by a more advanced type.  What structure was it?  Three Points. 


Evaporation is a cooling process.  Why?  Three Points. 

“Segmentation” means what, when applied to a vertebrate digestive system?  Three Points. 


What features are associated with faster impulse speeds?  Three Points Each. 


What is the “rule” about humans and learning another language?  Three Points. 


Why is group selection a “forbidden concept”?  Three Points.

BIO 170

Michael McDarby