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BIO 170 - Third Exam - Spring 2016
Links go to pertinent
passages of book.
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 are radially symmetrical?
a. Roundworm and annelid
b. Spider and beetle
c. Clams and sea urchins
d. Jellyfish and starfish
e. Oh, so that’s how it’s going to be…
_______
2. A
syncytium would be a necessary step in
a. Germination b. Multiple
fission c. Budding
d. Binary fission
e. Nothing that weird-sounding should ever be necessary
_______
3. A
swim bladder is used to
a. Remove wastes b. Supply
propulsion c. Adjust buoyancy
d. Disperse larvae
e. I don’t even want to know, it sounds gross…
_______
4. Which
of these is inversely proportional (smaller correlates with
larger)?
a. Sperm numbers and egg cell numbers
b. Number of offspring and odds of their survival
c. Fungal species in an ecosystem and plant species in that system
d. Number of metameres and overall complexity
e. Closeness of exam and number of functioning brain cells
_______
5. Cestodes
(tapeworms) are in the same phylum as
a. Hydra
b. Clams
c. Earthworms
d. Planaria
e. They make tape out of worms-?
_______
6. What
is the significance of the trochophore larva?
a. It exhibits both protostome and deuterostome characteristics
b. It connects several phyla that aren’t obviously connected
c. It follows a “typical” development pattern for research
d. All of the above
e. It got mentioned in the class, for some reason
_______
7. A mantle cavity
would be found in a
a. Snail b. Spider
c. Coral d. Sponge
e. Fireplace?
_______
8. Oxygen
debt occurs in
a. Respiratory systems b.
Protostomes c. Deuterostomes
d. Skeletal muscle
e. Some very strict banking systems
_______
9. Metamerism
is a feature, sometimes just in embryos, of
a. Beetles, earthworms, starfish
b. Crayfish, marine worms, human
c. Roundworms, snails, spiders
d. Leeches, freshwater worms, flatworms
e. A lot of critters that go squish when you step on them
_______
10. The two major subgroups
of fungi differ primarily in
a. Defensive chemistry
b. Ecological role
c. Spore production
d. Multicellular organization
e. Just how much fun they really are
_______
11. Which would be a chelicerate?
a. Crayfish b. Leech
c. Fluke d. Spider
e. Sounds kind of yummy
_______ 12. The most dangerous damage from a
schistosome infection comes from
a. Wandering eggs b. Host immune
reaction c. Wandering larvae
d. Parasite toxins e. Attempting to
tell people and accidentally spitting on them
_______
13.
Which are primarily connective tissue?
a. Sense receptors and cartilage
b. Tendons and muscles c. Blood and
bone
d. Lungs and heart
e. Staples and masking tape
_______
14.
A water vascular system is
found in
a. Clams b. Sponges
c. Starfish d. Annelids
e. Something very juicy
_______
15.
The intermediate host for malaria:
a. Humans
b. Viruses
c. Mosquitos
d. Can be any of the above
e. Whoever’s got the tiny couch
_______
16. Ligaments
a. Can store energy for release later
b. Are structurally almost identical to tendons
c. Stabilize endoskeletal joints
d. All of these
e. Figure into a large percentage of sports stories
_______
17. Neurotransmitters
a. Move an impulse along a neuron
b. Convert sensory input to a nerve impulse
c. Keep the “wiring” of a nervous system active
d. Carry messages across synapses
e. Are the next step in cell phone technology
_______
18.
Caenorhabditis elegans
a. Has been used to find HOX genes
b. Is an important protozoan parasite
c. Is an important nematode parasite
d. Has been used to “train” immune systems
e. Makes spelling bee contestants cry
Short Answer.
Pick NINE questions to answer in the spaces provided.
NOTE: if you answer MORE than nine, only the first nine
will be corrected.
Four Points each. Partial credit is possible.
1. Why
are flatworms
flat?
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2. What are two different functions that could be done by
accessory sexual organs? |
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3. What are the
two major functions of the lymphatic
system? |
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4. Briefly explain how being
monoecious is an advantage
even without self-fertilization.
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5. A) What is
cephalization? B) What other, apparently
separate feature is connected to it? |
A
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B
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6. What is the
function of contractile vacuoles?
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7a.
What germ layer was the last to evolve
in animals?
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7b. What are
two organ systems that mostly derive from
that
germ layer?
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8. Briefly explain how
conjugation in ciliates is a form of
suicide.
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9. What are the two major functions of the notochord? |
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10. What are two different
advantages for a tube digestive
system over a sac system? |
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11. What two processes
“stall” or delay the meiotic
divisions of egg cell production in mammals? |
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12. What are two general niches commonly occupied by
fungi? |
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13. What is the
basic physical distinction of epithelial
tissue?
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14. Some sponges use
fragmentation – explain what that
means.
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15.
Two different systems whose features tend to repeat in
metameres: |
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16. Two different reasons why capillaries are
leaky. |
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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.
Seven Points Each. Partial credit is possible.
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1. Give three sets of differences between - |
| PROTOSTOMES |
DEUTEROSTOMES |
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2. What are the four
growth zones of a fungus? |
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3. For each of the
four protozoan subgroups, give the
official name and the main mode of locomotion typical for that group. |
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4. What are
six different functions of integument? |
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5. For each type of
skeleton, give two different
advantages, compared to the other - |
| EXOSKELETON |
ENDOSKELETON |
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6. For each of the four muscle subtypes, give the
subtype
and one feature that makes that subtype different from the other three. |
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7. What are
four features of sponges and cnidarians that
are not found (or are very rare) in the other major animal phyla? |
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8. What are four major subgroups of the
mandibulate
arthropods? |
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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.
Where is one likely to find rhizomorphs? Three Points.
What’s the first step toward “tossing” fungal spores out
into the air? Three Points.
Yeasts have been used for a lot of basic, non-commercial
science. In what area? Three Points.
What unusual thing does a slime mold do when conditions get
bad? Three Points.
What advantage do aquatic animals get from internal
fertilization, in situations where eggs are quickly deposited in the open
environment? Three Points.
In humans, what non-ball shape is a blastula (Two Points),
and why is it that shape? (Three Points)
What unusual ability did McDarby’s experimental worms show
that they should not have had the brainpower for? Three Points.
Why are there probably more species of roundworms than
species in any other phylum? Three Points.
If an open circulation system has vessels, what type of
vessels would it most likely be?
Three Points.
What two cellular factors strongly influence the evolution
of human skin color? Three Points Each
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