SC 139 - Fourth Exam 2013

Numbers are linked to relevant passages in the book. 




On the line to the left, place the letter of the choice that best  answers the question.

Three Points Each.                  NOTE:  "e" answers are never the correct answer.



1.   The names of the two major arthropod subgroups are based upon their

_______                a.  Exoskeletons                               b.  Mouthparts

c.  Leg numbers                               d.  Nervous systems

            e.  Need to be seen as the best groups



2.   Locally, where would plankton be found?

_______                a.  Soil                                   b.  Inside a tree

c.  Large lake                         d.  Small stream

                e.  Lumber yard



3.   A water vascular system is primarily for

_______                a.  Power                                b.  Circulation

c.  Swimming                          d.  Waste removal

                        e.  Cleaning cars



4.   Uric acid would be a waste product produced by

_______                a.  Earthworms and marine worms               b.  Sharks and starfish

c.  Goldfish and shrimp                               d.  Crickets and crows

            e.  Anyone that pays the uric fee



5.   A closed circulatory system could be found in

_______                a.  A leech and a salamander                  b.  A spider and a moth

c.  A starfish and a tick                          d.  An earthworm and a centipede

       e.  Really, who goes looking for this stuff?



6.   Which are not both insects?

a.  Moths and dragonflies                  b.  Beetles and lice

_______                c.  Fleas and ticks                             d.  Termites and wasps

            e.  Spider-Man and Arachnophobia Woman



7.   What animals practice ranching and slavery?

_______                a.  Sharks                               b.  Ants

c.  Lizards                              d.  Hawks

      e.  I guess “people” is too obvious




8.   Which structure allows the organism to change its density to

                        match its surroundings?

_______                a.  Swim bladder                   b.  Setae                     c.  Exoskeleton

d.  Amniote eggs                   e.  Sounds cool, can I get one?




9.   An insect’s tracheal system is used for

_______                 a.  Digestion                           b.  Circulation

                              c.  Breathing                          d.  Snaring prey

                                             e. Stealing wifi




10.  What feature develops unusually quickly in marsupials?

_______                 a.  Front legs                                      b.  Brains

                              c.  Reproductive system                      d.  Waste removal

                                           e.  A love of pop music




11.  Which would produce poisons that are mostly effective when they

                        are already in a predator’s mouth?

_______                a.  Spider and leech                          b.  Bee and rattlesnake

c.  Starfish and slime eel                   d.  Millipede and toad
                                        e.  That doesn’t seem like the best arrangement…




                   12.  Sea squirts are in the same phylum with

_______                a.  Lobsters                             b.  Sea urchins

c.  Horses                               d.  Earthworms

            e.  That is a really random list



Answer any eight of the following questions for 4 Points Each.

Note:  if you answer more than eight, only the first eight  will be corrected.

You can get partial credit on these answers.

1.   What are two different subgroups of the arachnids?

2.   The two amphibian subgroups:
3.  What are two different types of structures that repeat in the segments of a segmented worm?

4.   Give the types of movement structures found on a typical insect thorax.  Include how many of each structure type is there as well.

5.   The four stages, in order, for indirect development in insects:


6.   What blood function is an open circulation system worse at than a closed system?




7.   Give one unusual feature found particularly in horseshoe crabs.




8.   Two sets of differences between -



9.   Two sets of differences between -





10.  Which two groups are endothermic?


11.  The two functions of a notochord:


12.  Give two different characteristic features that show up in both segmented worms and arthropods.


13.  What are the two surviving types of monotremes?


14.  What are two different evolutionary advantages that insects can get from metamorphosis?


15.  The two major deuterostome phyla:


16.  Why are “lake monsters” definitely not plesiosaurs? (other than they’re extinct)





Answer any four of the following questions for Eight Points Each.

Note:  if you answer more than four, only the first four will be corrected.

You can get partial credit on these answers.

1.   Under each of these types of skeleton systems, give two advantages that one has over the other.  Note, this is NOT asking for sets of differences!





2.   Give four flight-related characteristics of birds, and for each briefly explain how it relates to fight ability.





3.   Give the three sets of differences between the central nerve cords in...




6.   What are four different subgroups / Orders within the placental mammals?




7.   For two of the three subgroups of fish, give the general name of the subgroup, then two examples of fish types or species within that subgroup.




8.   Give four major subgroups of the mandibulates.




9.   For four of the major vertebrate groups (the big groups within the vertebrates), name the group and give one feature that each group has that none of the others do.








Answer as many as you are able.  Wrong answers will not result in points being lost from the main exam.   You can get partial credit on these answers.


What is the significance of the evolution of segmentation?  Three Points.



What is the main sense of a daddy longlegs?  Three Points.



What local lands animal is usually thought to be an insect but is really a crustacean?  Three Points.



What fairly bizarre hypothesis tries to explain insect metamorphosis?  Three Points.



What animals go through three symmetry organizations?  Three Points.



How are chordate tails different from other groups’ tails?  Three Points.



Why would a sea squirt have cephalization?  Three Points.



On the overhead cladogram, what feature was key to the branching of bony fish?  Three Points.



Distinguishing early fossil mammals from early fossil reptiles involves looking at what feature?  Three Points.



Why are reptile and fish scales not homologous?  Three Points.



Reptiles like snakes shed, but they don’t molt.  Why is that safer?  Three Points.



On what continents did marsupials last the longest?  Two Points Each.



What is the major internal structural difference between monkeys and apes?  Three Points.


Michael McDarby.

SCI 139

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