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Northern Pike-Fish Group 1

http://prezi.com/yiwxdgtgmp6e/zoology-vodcast/

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1) In the absence of larger prey options, what food source did northern pike optimize on?

Stomach content analysis showed pike specialization on leeches.

 

2) In Venturelli et al.’s experiment with Northern Pike, the removal of prey fish represents what natural event?

Removal of prey fish represents the effects of winterkill conditions.

 

3) How did a diet of invertivory affect northern pike growth?

Observed growth rate of adult northern pike in experimental lakes was low compared to reference lakes, suggesting that the sudden switch between food sources had a negative effect on growth and that leeches are not an ideal food source for adult leeches.

 

4) How did a leech-heavy diet affect juvenile pike?

Juvenile pike who eating leeches averaged larger in size than control and reference pike.

 

5) Although leeches are a higher energy food source than fish (calories per mg), why are they an unsuitable replacement in the northern pike diet?

Northern pike depending largely on a leech diet must spend much more time hunting and gathering food sources because prey are much smaller in size.

 

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C. lupus-General Vertebrate Group 1

http://prezi.com/c6hgxso-lvhv/wolves-bio-2012/?kw=view-c6hgxso-lvhv&rc=ref-3610479

 

Wolves are vertebrates because:

  1. they are warm-blooded
  2. they have fur
  3. they have four legs
  4. they have a cranium that protects the brain
  5. none of the above

 

What was the focus of the study?

  1. increasing beaver population due to wolf reintroduction
  2. how wolves influence the diversity of ecosystems
  3. how wolves impact songbird dynamics
  4. how wolves affect micro content of soil
  5. sapling survival of willow trees

 

What was the ecosystem response to wolf extirpation at Yellowstone?

  1. significant increase in elk, in response to lack of predation
  2. decrease in ecosystem diversity
  3. decrease in beaver populations
  4. all of the above
  5. none of the above

 

What was the ecosystem response to wolf reintroduction at Yellowstone?

  1. increase in beaver colonies
  2. taller trees and plants
  3. decrease in elk
  4. overall, major increase in ecosystem diversity
  5. all of the above

 

Wolves are a keystone species at Yellowstone because:

  1. the ecosystem collapses without them
  2. they are a top predator
  3. they affect beaver populations
  4. they aren’t a keystone species
  5. they affect trees
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When Sea Stars Attack-Echinoderm Group 2

http://prezi.com/td3om7e9lz_r/when-sea-stars-attack/

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1.     The Sea Star uses all these ways to defend themselves except?

a.     Toxins

b.     Pedicellariae

c.     Regeneration

d.     Extrude Internal Organs

 

2.     The Thorny Sea Star, Poraniopis inflatus, is one of the only species of sea stars to experience arm deflation, which is used for ?

a.     Reproduction

b.     Defense Mechanism

c.     Communication

d.     Locomotion

 

3.     The Sea Star belongs to what clade?

a.     Echinoidea

b.     Holothuroidea

c.     Asteroidea

d.     Crinoidea

 

4.     The body part pedicellariae on sea stars is used for defense and?

a.     Communication

b.     Capturing Food

c.     Locomotion

d.     Reproduction

 

 

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Brittle Star-Echinoderm Group 1

http://prezi.com/tabuuixl18c7/echinoderm-vodcast-final/

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Q1: Where was the regeneration rate the greatest?

a) The distal end of the arm

b) The proximal end of the arm

c) The disc

d) There was no difference in regeneration rate

Q2:  Arm explants regenerated faster than whole-animal arms.

a) True

b) False

Q3: As arm length loss increases, regeneration rates ____?

a) Stay the same

b) Decrease exponentially

c) Increase exponentially

d) None of the above

Q4: The brittle star uses its arms for everything EXCEPT

a) Collection and transportation of food

b) Ventilation and Respiration

c) Transportation of sediments and wastes out of the burrow

d) Communication

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E. fowleri-Chaetognath Group

http://prezi.com/pde8vmfcan1b/chaetognath-vodcast/

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1. Chaetognaths are classified as
A) Deuterosomes
B) Protosomes
C) Undecided

2. Light organs are found in the _______ of Chaetognaths?
A) Fins
B) Tails

C) Mouths
D) Both A and B

3. What was the control group in this experiment?

A) Eukrohnia  fowleri

B) Caecosagitta macrocephala

C) Homo sapiens

D) This was a comparative study so there wasn’t a control.

4. What characterizes the bioluminescent organs of Chaetognaths?

A) Produce a rainbow color

B) Have a hexagonal packing system

C) Do not contain luciferase

D) They are the size of a grain of rice

5. What is one hypothesis for the evolutionary advantage of bioluminescence in Chaetognaths?

A) Confuse and ward off predators

B) Attract mates

C) Allow for visibility in dark places

D) There is no adaptive value

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Red Wood Ants-Arthropod Group 3

http://prezi.com/smqvhpkzhnsb/european-red-wood-ants/

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1. Researchers studied ants that exhibit behavioral change in response to seismic activity in what country?

 

a) Germany

b) Brazil

c) India

d) New Zealand

 

2. Ants behavioral responses coincided with the advent of what natural phenomenon?

 

a) Thunderstorms

b) Drought

c) Earthquakes

d) Flooding

 

3. How long was normal daily behavior suppressed following the detection of seismic activity?

 

a) 4-6 hours

b) Until the following day

c) 48 hours

d) one week

 

4. Ants exhibited the same behavioral changes in response to the colony being disrupted by a badger as exhibited in response to seismic activity.

a) True

b) False

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Honeybees-Arthropod Group 2

1) What is propolis made of?

a. Pollen and wax
b. Tree resin and wax
c. Royal jelly and tree resin
d. Pollen and Royal Jelly

2) In the experiment, bees were painted on their thorax to signify what?

a. the age of the bee.
b. the original source colony the bee came from
c. the amount of time the bee was in the nucleus colony
d. none of the above

3) Which other social insect displayed a decreased immune function in response to the presence of resin in the nest?

a. Fire Ants
b. Paper Wasps
c. Bumblebees
d. Swiss Wood Ants

(4) What did the study find was the significance of propolis for bee colonies?

a. Aide in reproduction
b. Nutrients by ingestion
c. Immune system boost
d. Bacteria prevention in the hive

5) Elevated immune-gene expression does all of the following EXCEPT:

a. impair learning ability
b. impair flight abilities
c. lower colony productivity
d.reduce life span under stressful conditions

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Spider Silk-Arthropod Group 1

http://prezi.com/vyp2vjzduc_l/spider-silk-reduces-insect-herbivory/

1) It was concluded that silk from the silkworm put on the plants caused reduced herbivory because of:

a. Presence of the silk

b. Chemical signal present in the silk

c. Both a & b

 

2) What is one reason why Spiders such as T. elongata produce silk?

a. to absorb sunlight 

b. to capture and immobilize prey

c. to vibrationally sense their surroundings

 

3) In the experiment, leaves and plants were treated with what before being exposed to herbivores?

A. Spider silk

B. Silkworm silk

C. No treatment

D. A and B only

E. All of the above

 

 4) The spider silk was successful in laboratory experiments, but failed in field experiments.

A. True

B. False

 

 

 

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M. tarigradum-Tardigrades Group

The “extreme” lifestyle of M. Tarigradum can be attributed to what:

a.) desiccation
b.) cryptobiosis
c.) DNA damage
d.) anhydrobiosis

Answer: B

The findings of the experiment done by Neumann, Reuner, Brummer and Schill showed that

a) The longer the Tardigrades stayed in an anhydrobiotic state, the more DNA damage was observed.
b) DNA damage could be a possible cause for the decline in survival of the Tardigrades after long periods of andydrobiosis.
c) Tardigrades do well in an environment saturated with alcohol
d) Both A and B
e) Both A, B and C

Answer: D

According to the Podcast, research with Tardigrades is of interest to scientists because:

a.) Research surrounding Tardigrades is being used in space to test for the sustainability of human life on other planets.
b.) Scientists think Tardigrades could possibly be extra-terrestrial.
c.) We can use the research to discover new ways for humans to survive in extreme climates and environments.
d.) Both A and B
e.) A, B and C

Answer: D

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Whipworms-Nematode Group

1. What is the typical host of T. suis?
a. human
b. dog
c. squirrel
d. pig
e. rat

2. How are whipworms transmitted from host to host?
a. ingestion of contaminated feces
b. inhalation
c. cut on something rusty
d. bite from an infected animal

3. What was T. suis used to treat?
a. Appendicitis
b. Irritable Bowel Disease
c. Anemia
d. Diabetes Mellitus
e. Ulcerative Colitis

4. How did the patients obtain T. suis?
a. drinking water contaminated with T. suis
b. eating pig with T. suis
c. ingestion of T. suis ova
d. injection of serum containing T. suis

5. What clade is T. suis a part of?
a. Oligochaeta
b. Polychaeta
c. Nematoda
d. Priapulida
e. Loricifera