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BI 173 - Fourth Exam - 2001
MULTIPLE CHOICE.
Place the letter of the choice that best answers the question on the line to the left. Two Points Each.
NOTE: "e" answers are never the correct answer.
_______ 1. Which should have four pairs of walking legs?
a. Crabs & crayfish
b. Fleas & ticks
c. Centipedes & crickets
d. Spiders & scorpions
e. A couple walking their dog
_______ 2. Which are crustaceans?
a. Crabs & crayfish
b. Fleas & ticks
c. Centipedes & crickets
d. Spiders & scorpions
e. A couple eating their dog
_______ 3. Which would commonly use color-based communication between individuals
of the same species?
a. Snakes & corals
b. Birds & squids
c. Flukes & bees
d. Ticks & sea cucumbers
e. Artists & roadway workers
_______ 4. Which would be endotherms?
a. Moths & wasps
b. Frogs & lizards
c. Robins & cats
d. Platypus & alligator
e. A therm's butt
_______5. Which groups consist of only parasites?
a. Nematodes, Starfish, Fleas
b. Leeches, Nematodes, Corals
c. Sarcomastigophora, Ticks, Trematodes
d. Apicomplexa, Cestodes, Lice
e. Game show hosts, lawyers, and college professors
_______6. The invertebrate chordates include the
a. Sea squirts & lancelets
b. Starfish & sea urchins
c. Earthworms & leeches
d. Lamprey eels & snakes
e. Ones that don't own a computer
_______7. In modern winged insects, the wings are driven by
a. Muscles attached to their bases
b. A water vascular system
c. Muscles attached to the body wall
d. A notochord
e. The uncontrollable urge to annoy people with buzzing
_______8. Oligochaete worms can be found in
a. Small & large intestines
b. Freshwater & underground
c. Fresh & marine waters
d. Mollusks & crustaceans
e. Those oligo areas where chaetes live
_______9. Choanocytes would be a feature on which animal?
a. Jellyfish
b. Octopus
c. Sponge
d. Earthworm
e. The one whose picture is next to "choanocytes" in the glossary.
_______10. A structure used as a functional internal space and/or a shell producer:
a. Mantle
b. Foot
c. Pharyngeal pouch
d. Hydrostatic skeleton
e. The space & shell salesguy
_______11. Which would have endoskeletons?
a. Fluke & medusa
b. Crayfish & cricket
c. Sponge & earthworm
d. Starfish & rat
e. Only those who can afford them - they're trendy but expensive
_______12. Poisons produced almost exclusively for defensive purposes would be
found in the
a. Spiders & snakes
b. Cnidarians & Mollusks
c. Amphibians & millipedes
d. Centipedes & Echinoderms
e. Student that used to sit next to you in that other class
_______13. A stigma would be roughly analogous to
a(n)
a. Penis
b. Eye
c. Pincer
d. Antenna
e. When did the questions stop being in English -?
_______14. The fluid-filled body cavity of a nematode is used as
a. Skeleton & circulatory system
b. Muscle & reproductive system
c. Endocrine & nervous system
d. Protection & skeletal system
e. A bizarre whoopie cushion - they're such pranksters!
_______15. The swim bladder of Osteichthyes is most useful because it allows
a. More efficient waste removal
b. Much better oxygen exchange in warm water
c. Energy to be saved in swimming
d. The circulation system to form two loops
e. Them to be in the water without a lifeguard
_______16. Sealed, amniote eggs would be produced by
a. Turtle & platypus
b. Toad & crocodile
c. Shark & lizard
d. Snake & kangaroo
e. Your local chicken farmers - well, not actually the farmers...
_______17. Which would have two cell layers and a
mesoglea?
a. Flatworm & coral
b. Sea anemone & glass sponge
c. Tapeworm & liver fluke
d. Jellyfish & slime eel
e. The ones without enough cash for the upgrade
_______18. Which would be a radula?
a. Ameba pseudopod
b. Shark scale
c. Snail tongue
d. Flatworm sucker
e. A genetically-engineered salad garnish
SHORT ANSWER.
Pick TEN Questions to answer in the spaces provided.
NOTE: if you answer MORE than ten, only the first ten will be corrected.
Four Points each. Partial credit is possible.
1. Name two behaviors found in social insect colonies that most people would reasonably assume
only humans do.
2. The swimming methods of the subgroups of Chondrichthyes are similar to which two different
aerial flyers? [BONUS, Two Points each - match the flyers with the subgroup.]
3. Briefly, why are flatworms flat?
4. Why are the Onychophorans of interest to evolutionary biologists?
5. Briefly explain the major roles of:
Macronucleus:
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Micronucleus: |
| Bonus, 2 Points: Which particular
subgroup are these found in? |
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6. Briefly explain the significance of the trochophore larva.
7. What are two major groups from different phyla that undergo metamorphosis?
8. Briefly explain what makes an organism plankton.
9. What are two reasons why, or circumstances under which organisms go through alternation of
generations?
10. Name the two major subgroups (Subphyla, actually) of the Arthropods.
11. Give the numbers and types of appendages typically found on an insect's thorax.
12. What are two of the particular locomotion types found in protozoans?
13. Give two major groups, Phylum-level or just below, that are considered exclusively marine.
14. What are four of the major subgroups (Orders, actually) included in the modern winged
insects?
15. Give the definitive difference between
| Intermediate
Host:
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Definitive or
Final Host: |
16. In what specific type of ecosystem (you can give an example) would you be most likely to find
a rotifer?
17. What are the two major subgroups of the Amphibians?
LONG ANSWER.
Select and answer completely any four of the following questions.
NOTE: if you answer more than four, only the first four will be corrected.
Six Points Each. Partial credit is possible.
1. Name six different phylum-or-major-subgroup-level groups that are characteristically dioecious.
2. Name six groups at either the phylum level or a major subgroup level (Subphylum, Superclass
or Class) that are considered totally terrestrial.
3. For three different types of nematodes that live in humans, give the name of the worm and
one unusual fact about it.
4. Pick three particular challenges that faced animals evolving from aquatic to terrestrial forms;
for each, give an adaptation to that challenge found in a terrestrial vertebrate.
5. What are six different types of structures that would be part of the repeating pattern in annelid
metameres?
6. For three major subgroups of the mollusks, give the official name of the subgroup and then
describe how the molluskan foot is modified in that particular subgroup.
7. List six different characteristics that distinguish the vertebrate Chordates, not including
subgroups or examples. These can be Chordate or Vertebrate characteristics.
8. Name three characteristics of birds that are particularly connected to flight. Then, for each,
briefly explain the connection between the characteristic and efficient flying.
LINK
TO ANSWER KEY
BONUS QUESTIONS.
Answer as many or as few as you wish. You can't lose points on the rest
of the exam by getting these wrong. Partial credit is possible.
Briefly explain how sexual reproduction in ciliates amounts to suicide for the participants. Four
Points.
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If animals have a protozoan ancestor, why was that ancestor probably unlike any of the
protozoans we can see today? This is linked to an ability all animals have that given protozoans
lack. Three Points
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Why are tapeworms not considered to be metameric? For Three Points, what feature do the
lack?
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There are a number of basic "layout plans"
(NOT symmetry patterns) that show up in
many unrelated groups. For Three Points
each, describe the plans (you can describe
or use a "typical" example.).
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What would it mean if a species was a
facultative carnivore? Three Points.
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Where did the term naiad come from to
describe an immature insect? Three
Points.
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What is a likely reason that the armored
fishes died out? Three Points.
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Species from which major organism
groups almost certainly preceded
vertebrates into terrestrial
environments? Two Points Each.
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Pick a Phylum-Level animal group that
you think could be labeled "most
successful." Name the group and give one
compelling reason for the label.
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