SC 139 - Third 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. Forests go from being mostly angiosperms to mostly gymnosperms going

_______         a. Up in altitude or south in latitude
                      b. Down in altitude or south in latitude
                      c. Up in altitude or north in latitude
                      d. Down in altitude or north in latitude
                      e. Alphabetically

 

2. The cuticle of plants

_______         a. Prevents water loss                         b. Protects from damage
                      c. Prevents water entry                       d. Absorbs light
                                      e. Can’t be fixed at a nail salon

 

3. The dangerous aspects of schistosome disease is produced mostly by

_______         a. The worms eating body cells                     b. Poisons created by the worms
                      c. The body’s own immune reactions            d. Wandering eggs
                              e. Trying to say it, spitting on folks, and getting slapped

 

4. If the strength of four single-frequency colored lights was identical, which light would give
                the best results for plant growth?

_______         a. Green                 b. Purple                c. Red                 d. It makes no difference
                                            e. Whichever one you can find on e-bay.

 

5. Many people can’t get beaver fever (giardiasis) a second time because

_______         a. They’ve developed an immunity to it          b. Only beavers can get it
                      c. The first bout kills them                            d. They are carrying Giardia that prevents it
                                        e. They were too embarrassed by the name the first time

 

6. The algae found at different depths are generally different colors because

                      a. They need to blend into different environments
                      b. The temperature drops with depth
_______         c. They use different chlorophylls
                      d. They produce different materials with photosynthesis
                      e. They read different fashion magazines

 

7. Cephalization is almost always linked to

_______         a. Endoderm                 b. Bilateral symmetry                c. Ectoderm
                      d. Radial symmetry            e. 50 other impossible-to-remember terms

 

8. To make a macronucleus, you need

_______         a. A regular nucleus         b. Another macronucleus         c. A micronucleus
                      d. A cell wall                    e. "NUCLEUS" to already be on the ScrabbleTM board

9. If the bark with its phloem is stripped from around a tree, the flow of materials can
               no longer get to the

_______         a. Roots             b. Leaves             c. Xylem            d. Flowers
                                                    e. Convenience store

 

10. Which would have a mesoderm?

_______         a. Sponge & jellyfish             b. Jellyfish & fluke            c. Hydra & coral
                      d. Turbellarian & fluke                e. Isn’t that some sort of beauty product?

 

11. The basic purpose of a fruit is to

_______         a. Spread seeds                 b. Feed animals                c. Carry pollen
                      d. Fertilize the seeds                      e. Have flavors that are copied in candy

 

12. Which are parasites?

_______         a. Apicomplexans & sponges                         b. Sponges & flukes
                      c. Apicomplexans & flukes                           d. Hydras & amebas
                                        e. TV executives & pop stars

 

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. What are the two particular types of environments that probably served as the link or "staging areas" for the movement of life from the oceans up onto the land?


 

2. Tree rings are alternating light and dark rings. Around here, which season is most likely to give rise to

Dark
rings?

Light
rings?

3. What are two different uses for carotenoids?

 

 

4. What are two different types of bribes that plants offer to the animals that they co-evolve with?

 

 

5. Name the specialized cell types that are only found in each animal group -

SPONGES

 

CNIDARIA

6.  For nutrients that plants need that are not needed for photosynthesis -

Which
nutrient?

How’s it
used in the
plant?

7. Why are flatworms flat?

 

 

8. Which two groups of protozoans are generally linked into a supergroup?


 

9.  For a typical pine tree, give two sets of differences that would be obvious to someone standing nearby -

MALE
CONES

 

FEMALE
CONES


 

 

10. Lichens are a combination of -

What type
of plant?

What other
type of
organism?

11.  Briefly explain what happens in a germinating seed that makes the shoot grow upward.

 

 

12.  Give the basic process of photosynthesis. (materials can be spelled out - you don’t need chemical symbols)

 

                                                                   ----------------->

                  Ingoing material or materials........Energy...........Outgoing material or materials.

13.  Explain what a pioneer organism is.

 

 

14. By definition, what makes a host an intermediate host?

 

 

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.  What are four structures or abilities that evolved in gymnosperms that were "new," not found in the earlier groups?



 

 

 

2. Give the important steps of a fern’s life cycle. Include the names of the 2 main forms and the types of reproduction used. The lines below are not meant to correspond to the number of steps - it’s like a bit of lined paper.


 


 


 


 


 

3. Give four sets of general differences between -

EGG CELLS

SPERM


 


 


 


 

4. For the processes that help move water up a plant, give the proper term for two, then for each one briefly explain how it works.

 

 

 

 

5. Give three sets of differences between -

CILIA

FLAGELLA

 

 

 

 

 

 

6. Give four sets of differences between -
DICOTS MONOCOTS


 

 

 

 

 

 

 

7. Several different groups use alternation of generations to increase their evolutionary chances - we’ve looked at three different ways that this works. Explain the different evolutionary strengths of the approach, and for each one give an example of a group that benefits that way.


 

 

 

 

 

 

 

 

Link for Answer Key

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.

Latin root words - Three Points each, tell what each one means -

-phyte

rhiz-

pseudopod

platyhelminth

Why, exactly, is it really useful to be able to digest cellulose? Three Points.

 

Which part of a flower usually acts as a "landing pad"? Three Points.

 

In Mexico, their (nastier) version of beaver fever is caused by what sort of organism (subgroup)? Three Points.

 

Malaria used to have the stage that’s now in humans in what other animal? (Hint: it’s not a mosquito!) Three Points.

 

 

What local condition is caused by schistosomes? Three Points.

 

 

Why, probably, aren’t there actual human-infesting schistosomes in the United States? Three Points.

 

 

In the training experiment, the flatworms applied a type of thinking that should have been well beyond their abilities. What was it? Three Points.


 
     

Michael McDarby.

Hit Counter