SC 139 - Fourth Exam 2003

 

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. Which belong to the same phylum?

_______      a. Slug, roundworm, sea cucumber           b. Fruit fly, earthworm, salamander
                        c. Octopus, starfish, lobster                        d. Sea squirts, tortoises, cats
                                e. Maybe I should have looked at the pictures in the chapters...

 

2. Which basic feature pretty much always is present in animals with bilateral symmetry?

_______      a. Cephalization         b. Closed circulation system          c. Legs 
                    d. Wormlike shape                        e. An ability to creep us out

 

3. Animals that produce uric acid as a waste also

_______      a. Have exoskeletons                                 b. Produce sealed eggs
                    c. Make no digestive wastes                       d. Live in water
                                                e. Have other disgusting habits

 

4. Which would have embryos whose cells divide unevenly (spiral cleavage)?

_______      a. Centipedes and goldfish                         b. Earthworms and snake
                        c. Starfish and shark                                  d. Snail and grasshopper
                                    e. It certainly wouldn’t be polite to ask them, would it?

 

5. Which would have cartilage skeletons?

_______      a. Hammerhead shark and sting ray             b. Goldfish and salamander
                    c. Starfish and sea urchin                            d. Snake and spider
                                                    e. Animals on a very tight budget

 

6. A swim bladder’s main advantage is that it

_______      a. Conserves energy                                        b. Improves respiration
                    c. Is used as a jet propulsion system          d. Changes the overall shape
                                e. Helps on those long commutes with no rest rooms available

 

7. The freshwater oligochaete segmented worms we looked at in the lab are 
                                    most closely related to

_______      a. Eels         b. Lancelets         c. Tapeworms          d. Leeches         e. Linguini

 

8. Which are arachnids?

_______      a. Roundworms and snakes                         b. Scorpions and ticks
                        c. Millipedes and centipedes                        d. Snails and clams
                                    e. Tricky, leaving out the one most people know...

 

9. Which are endothermic?

_______      a. Starfish and squids                             b. Lizards and sharks
                        c. Alligators and turtles                           d. Crows and kangaroos
                                e. Sounds like something you need medication for

 

10. Which would go through metamorphosis into an adult form?

_______      a. Moth and toad                                 b. Shark and spider
                        c. Slug and earthworm                         d. Snake and starfish
                                            e. Madonna, but she’s not done yet

 

11. Which is most likely to be able to breathe through its skin?

_______      a. Insect                     b. Goldfish                     c. Salamander  
                    d. Crocodile                         e. It’s a neat trick in any case...

 

12. What the water vascular system does, primarily, is done in other groups by

_______      a. Excretory systems                     b. Respiratory systems  
                    c. Digestive systems                     d. Muscle systems
                                                    e. Government contracts

 

 

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 two completely different uses for chromatophores?

 

 

2. By definition, what is supposed to be the difference between -

FUR

 

HAIR

3. What are two different types of features that DO NOT repeat in segment after segment of segmented worms.

 

 

4. Define plankton. Tell what it is rather than what sorts of organisms are in it.

 

 

5. What are two basic features found in both segmented worms and arthropods?

 

 

6. What are two different ways that a mantle cavity can be used?

 

 

7. Give one set of differences between the basic features of -

MILLIPEDES

CENTIPEDES

 

 

8. Of the two types of structures used for moving in insects, tell how many of what types are commonly present.

 

 

9. The blood itself is used to do something in animals with closed circulation systems that it rarely is used for in open systems. What is that function?

 

 

10. The major subgroups of modern reptiles each include pairs of types - name two subgroups, both types each

 

AND

 

 

AND

11. What are two types of invertebrates, from different phyla, that are considered fairly intelligent?

 

 

12. What are the two different basic uses of the notochord?

 

 

13. For parapods -

What
are
they?

What
group
has them?

14. What are two of the three major subgroups of mammals?

 

 

15. Echinoderms have several features found in almost no other animal groups. What are two such features?

 

 

16. What are the two different types of jawless fish alive today?

 

 

 

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 four classes of vertebrate chordates. These are the big groups within the vertebrates.

 

 

 

 

2. For three different types of nematodes, give the type of nematode and then give one unique or unusual fact about that particular type

 

 

 

 

 

 

3. 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!

EXOSKELETON

ENDOSKELETON

 

 

 

 

4. Give two of the major subgroups of the mollusks, and for each describe how the mollusk foot looks and/or works in that subgroup. A labeled diagram is acceptable.

 

 

 

 

5. Give four subgroups of the insects.

 

 

 

 

6. For four basic features of birds that relate to flight, name the adaptation and then explain how it helps birds to fly.

 

 

 

 

 

 

 

 

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

INVERTEBRATES

VERTEBRATES

 

 

 

 

 

 

Link to 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.

Many people locally have preventive medication for roundworms in their homes. What type of roundworm is it? Three Points.

 

 

Briefly explain why there can be no identical twin mosquitos. Four Points.

 

 

Horseshoe crabs, sharks, and crocodiles all represent what sort of evolutionary process? Three Points.

 

 

Before South America connected to North America, what was the top predator in many of its ecosystems? Three Points.

 

 

Mammals in Australia belong to one of the major subgroups. The only exceptions are people and the mammals they brought with them, and what other mammals? Three Points.

 

 

Which two groups, if they had been able to adapt to fresh water systems, would probably have been better at it than our fishy ancestors? Three Points Each.

 

 

Which basic body plans show up in multiple unrelated animal groups? Three Points Each.

 

 

Which major group - Kingdom or Phylum, nothing smaller, so you have to know the big groups here - should be considered the most successful group, and why? You can do up to three, for Four Points Each.


 
     

Michael McDarby.

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