SC 139 - Fourth Exam 2005

 

Links on Numbers go to relevant passages in the online textbook.

MULTIPLE CHOICE.

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. Why are tapeworms NOT considered to be segmented?

_______         a. Only segmented worms are segmented
                      b. Proglottids are not in the middle of the worms
                      c. Parasites can’t be segmented
                      d. Backboned animals are not segmented
                      e. They never filled out the proper form

 

2. A notochord can be important to

_______         a. Movement & development                     b. Coordination & digestion
                      c. Feeding & development                         d. Movement & digestion
                                            e. Well, is it a chord or not-?

 

3. The water vascular system of Echinoderms does most of the work that is done in other animals by

_______         a. Gills             b. Blood vessels             c. Skeleton            d. Muscles
                                                        e. Household servants

 

4.  Which would have an exoskeleton?

_______         a. Snail & starfish                 b. Turtle & clam                c. Lobster & spider
                      d. Dog & sunfish            e. The one that had the really big fight with its skeleton

 

5. Metamorphosis is found in

_______         a. Tapeworms & roundworms                             b. Insects & amphibians
                      c. Snails & insects                                              d. Reptiles & starfish
                                            e. Only the largest dictionaries

 

6. The most important aspect of bony fishes’ swim bladder is that it

                      a. Helps draw oxygen from the water
                      b. Gives the muscles something to pull against
_______         c. Could be evolved into a lung
                      d. Helps conserve swimming energy
                      e. Does not produce detectable "warm spots" in the swimming pool

 

7. Open circulation systems are rarely used as the cells’ only source of

_______         a. Waste removal             b. Nutrients            c. Oxygen
                      d. All of these                            e. Entertainment news

 

8. Which would be endotherms?

_______         a. Robin and kangaroo                         b. Crocodile and mouse
                      c. Spider and crayfish                          d. Moth and cat
                                      e. I pay no attention to ethnic origins

 

9. The final, critical adaptations for land vertebrates involved

_______         a. Lungs & glandular skin                     b. Endothermy & endoskeletons
                      c. Amniote eggs & uric acid                 d. Scales & legs
                                          e. Credit cards & remote controls

 

10.  Which are echinoderms?

_______         a. Sea snake & sea squirt                         b. Sea squirt & sea dollar
                      c. Sea slug & sea lily                               d. Sea cucumber & sea urchin
                                          e. Sea squishie & sea fuzzy slipper

 

11. Systems that tend to repeat by segments in segmented worms:

_______         a. Circulatory & excretory                         b. Digestive & muscle
                      c. Skeletal & digestive                              d. Sensory & reproductive
                              e. The systems that were cheap and replaceable

 

12.  A tube digestive system with two openings allows

_______         a. More continuous feeding                 b. Coordination with breathing
                      c. Better circulation of nutrients          d. Coordination with movement
                                      e. A greatly lowered "ick" factor

 

 

SHORT ANSWER.

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. The two types of appendages on an insect thorax - how many of which types?

 
2. What are two advantages an endoskeleton has over an exoskeleton?
 

 
3. Give two sets of differences, structural or functional, between -

CENTIPEDES

MILLIPEDES

 

 
4.  The two main functions of the body cavity in a roundworm -

 
5.  Two features that make lamprey eels fairly unusual animals -

 
6.  Name two separate subgroups of the cartilage fish.

 
7.  Name two subgroups of the placental mammals.

 
8.  Give two different groups (more than species-size) of arachnids.

 
9.  What is a marsupial? Definition, not example.

 
10.  Bilateral symmetry is linked to another feature that does not seem related
What
feature?
 		 Why are
they
related?
11.  What are two reptile subgroups?
 

 
12.  Two things that can be done by a mollusk mantle -
 

 
13.  What is one example of an invertebrate chordate?

 

 
14.  What are two facts or features that suggest a close connection between birds and dinosaurs?
 

 
15.  Chromatophores are used for what two very different functions?
 

 

 

LONG ANSWER.

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

INVERTEBRATES

VERTEBRATES
 

 
 

 
 

 

2.  What are eight different major subgroups within the arthropods? You can include groups within groups, but they have to be more than species-size groups.
 

 
 

 
 

 
 

 
3.  Give three sets of differences between (don’t say the same thing two ways) -

PROTOSTOMES

DEUTEROSTOMES
 

 
 

 
 

 

4.  Two major subgroups of amphibians - each has two "types" within it...

AND

AND

5.  For each of the three major subgroups of Mollusks, give the group, and then describe the characteristic form the foot takes in that group.
 

 
 

 
 

 

6.  For four different types of nematodes, give the species or common name and then one feature for each that makes them unusual, even compared to other nematodes.


 
 

 
 

 
 

 

7.  What are four characteristics of birds that can be directly connected to the aspect of flight? (Other than wings, or flight itself)


 
 

 

Link to Answer Key

BONUS QUESTIONS ON BACK.

 

BONUS QUESTIONS.

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.

Briefly explain why roundworms probably have more species than any other animal phylum. Three Points.

 

Which invertebrates are generally considered the most intelligent? Two Points Each.

 

 

Which group probably would have out-competed our distant ancestors if they had managed to adapt to fresh water? Three Points.

 

What is the very first functional organ in a human embryo? Three Points.

 

Which subgroups (phyla, subphyla, or classes) are almost completely restricted to ocean / marine environments? Two Points Each.

 

 

Lungfish are bad candidates to be like the ancestors of amphibians. For Three Points, why?

 

 

Why can’t the Loch Ness Monster be a plesiosaur or dinosaur? (Other than they’re supposed to be extinct) Three Points.

 

 

Birds show many sexual selection features, more than other animals. Why? Four Points.

 

 

Dimetrodon - the critter with the big back-fin that’s in every pack of toy "dinosaurs" - was most closely related to what modern group of vertebrates? Three Points.

 

Marsupials survived the longest in South America and Australia. For Three Points, explain why.

 
     

Michael McDarby.

 

Hit Counter