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SC 139 - Fourth Exam 2000
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 would lay sealed, waterproof eggs?
_______
a. Toad, snake, and canary
b. Turtle, parrot, and kangaroo
c. Snail, butterfly, and rabbit
d. Platypus, crow, and crocodile
e. Do what to what?
2. Pinworms are
_______
a. Only tropical
b. Only subtropical
c. Common locally
d. Passed by insects
e. Not as popular as other forms of jewelry
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 a mantle?
_______
a. Spider
b. Snail
c. Goldfish
d. Bird
e. I can't see them even having a fireplace...
5. Which would be warm-blooded (endothermic)?
_______
a. Catfish and spider
b. Sparrow and garter snake
c. Pigeon and cat
d. Human and starfish
e. A hamster in a microwave
6. Which is generally true about tapeworms?
a. Adult tapeworms are more damaging than larval tapeworms
b. Larval tapeworms are more damaging than adult tapeworms
_______
c. Tapeworms are a subgroup of the segmented worms
d. All of these
e. Tapeworms are useful for sticking things together
7. Which would produce defensive poisons to keep itself from being eaten?
_______
a. Hookworm and newt
b. Centipede and spider
c. Toad and millipede
d. Squid and earthworm
e. This is the secret to cafeteria cooking
8. Segmentation (metamerism) helps to simplify what process?
_______
a. Growth
b. Reproduction
c. Movement
d. Respiration
e. Eating pizza
9. Which is not a reptile?
_______
a. Turtle
b. Snake
c. Salamander
d. Alligator
e. Professors - no, wait, yes they are...
10. Schistosomes are a
_______
a. Dangerous flatworm parasite
b. Intestinal roundworm
c. Primitive arthropod
d. Nonshelled mollusk
e. Tiny structures on your schist
11. A scolex is a structure on a(n)
_______
a. Leech
b. Starfish
c. Shark
d. Tapeworm
e. Isn't that a watch?
12. Which would have a skeleton made up almost entirely of cartilage?
_______
a. Mako shark
b. Sea urchin
c. Monitor lizard
d. Seagull
e. The one who didn't read the contract closely enough
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. An insect would generally have appendages for movement on its thorax. What types
of appendages, and how many of each type?
2. Many land animals produce metabolic wastes in the form of uric acid. Why?
3. Briefly explain why there are probably more species of roundworms than insects.
4. What are two of the subgroups within the arachnids?
5. Give an example from each group -
INVERTEBRATE CHORDATES:
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JAWLESS FISH: |
6. Give an example from each group -
7. What major advantage is linked to the evolution of a one-way, tube-in-a-tube digestive
system, over the earlier "models?"
8. What, by definition, makes a host an intermediate host?
9. Give two of the subgroups within the segmented worms (Annelids).
10. For the animal that produces "swimmer's itch":
The subgroup it belongs to -
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Its final host: |
11. If a group of animals are free-living, what does that mean?
12. Give two different examples of invertebrates that are considered quite intelligent.
13. What sort of animal is Caenorhabditis elegans, and why is it significant?
14. The only common local filarial roundworm can be found usually in two different types
of hosts around here. What are those hosts?
15. Briefly explain the original use of the caduceus, the medical symbol.
16. Define what is meant by pentaradial symmetry.
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. Pick four vertebrate chordate classes / subgroups - name it and describe a feature or
combination of features that makes it distinct from the other vertebrate groups.
2. Name the three major subgroups of Mollusks, and for each tell what sort of form the
foot takes in that subgroup.
3. Pick four adaptations found in birds that help them fly - name the adaptation and briefly
explain how it contributes to flight ability.
4. For each, give two advantages it has over the other -
5. For the two different types of nerve cords, give three sets of differences, and give one
example of a type of animal with that column's nerve cord.
6. Give eight different examples of placental mammal subgroups.
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.
How do sheep tapeworm larvae increase the
chances that the ants they're in will get eaten
by sheep (Three Points), and how do they
accomplish this? (Three Points)
Under what circumstances does a person get
creeping eruption? Four Points.
Horseshoe crabs were used earlier in the
semester as an example of what evolutionary
process? Three Points.
Why are the tops of insect heads constructed
differently from those of most spiders? Four
Points.
What benefits do insects get from indirect
development? Three Points each.
The amphibians are, from a reproductive
standpoint, the vertebrate equivalent of which
plant group? Three Points.
Scientists used to think that the pterosaurs,
the winged lizards of the time of the dinosaurs,
couldn't really fly because they lacked what
structure? Three Points.
There is an excellent reason to expect that
such groups as the crocodiles, the penguins, or
the whales will never develop a type of
underwater breathing system, like gills. What
is that reason? Three Points.
Among major groups of organisms, which
groups have been the most successful? For up
to four groups (phylum level or larger - if you
pick a smaller group, discuss the large group
it's part of!), name the group and give a good
reason why that group could be considered the
most successful. Four Points each.
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