1. The researchers found that the absence of shelter impact_________ of Vipera aspis?
a. physiological performance
c. stress hormone level
d. all of the above
e. b and c
2. What is the function of heliotheria?
c. Temperature regulation
3. Where are Vipera aspis found?
d. South America
e. Southern United States
4. What physiological parameters were the researchers testing?
a. sleep hormones and changes in sleep patterns
b. sex hormone changes during reproduction
c. response to presence of prey
d. digestion and stress hormone levels
5. Digestion of Vipera aspis was increased with exposure to colder temperature.
- What was different between the running methods of B. plumifrons and terrestrial animals?
- Ankle and knee flexion missing
- Longer strides
- No difference
- Kinematic variation between running strides of B. plumifrons were due to:
- Foot length
- Animal size
- Sprint speed
- What adaptations have B. plumifrons developed to help them evade predators?
- Strong, whip-like tails
- Color-changing skin
- Running across water
- B. plumifrons use their legs as a ___________ element to run across water.
- Spring and force
- Research on Platypus breeding behaviors is important for:
- Following population sizes and demographic information
- Increasing the number of Platypuses in Captivity
- Increase breeding for use as domestic pets
- All of the above
- Successful breeding in the behavior study occurred between:
- Male 1 and Females 1 & 2
- Male 2 and Female 1
- Male 1 and Female 1
- Male 2 and Female 2
- The male platypus plays a role in:
- Choosing a burrow site
- Tending to the eggs
- Taking care of the young
- All of the above
- Estimated gestation time is:
- 30-35 days
- 15-21 days
- 20-30 days
- 12-15 days
- The platypus courting ritual includes
- The male chasing the female
- A dance performed by the male
- Swimming together and tail biting
- High pitched calls between the mates
1. The chameleons consistently matched the background more closely in response to birds than to snakes because.
a. snakes can smell better
b. chameleon’s natural predator is the bird
c. the bird’s vision can decipher colors and shades differently
d. the snake’s vision can perceive movement better than color
2. The dwarf chameleons had different behavioral responses to the bird and the snake.
3. The dwarf chameleon is classified as critically endangered and has a high risk of extinction in the wild.
4. When predators are nearby, the Smith’s Dwarf chameleon will try to look like:
a. A dead leaf
b. A flower
c. A fruit
d. A dwarf
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- Pandas reproduce at a much lower rate…
- When placed in captivity
- When faced with habitat destruction
- When sharing a habitat with other species
- Both a and b
- Both b and c
- Female pandas are “in heat” for what length of time?
- 2-4 weeks a year
- 12-14 days per year
- 2-4 days per year
- 12-14 weeks per year
- According to the study, pandas are at a “genetic dead end.”
- According to the study, approximately what proportion of the pandas’ ancestral habitat has been lost?
- Which of the following was NOT given by the study as a reason for population decline?
- Introduction of foreign species
- Major expansions in ancient human civilizations
- Rapid development of agriculture
- Agricultural associated landscape events
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1) What is the function of the calcified cartilaginous skeleton for the cookiecutter shark?
for foraging in deeper water
2) What is the most frequent fish preyed on by the cookiecutter shark throughout the year?
3) What does the bite size of the cookiecutter shark suggest?
bite size corresponds to body size; males smaller than female
4) What does cookie-cutter shark uses to attract preys?
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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.