Question 1

How does the skunk cabbage maintain the temperature of its inflorescence 15°C to 35°C above air ambient temperature?

Accepted Answer

A)  Metabolizing starch at a very high rate 
B)  Orienting the inflorescence perpendicular to the sun's rays 
C)  Maintaining a bowl shape which reflects and concentrates solar energy 
D)  Maintaining a cushion shape 
E)  Extending its inflorescence along the ground to maximize conductive heat gain 
A)  Metabolizing starch at a very high rate 
B)  Orienting the inflorescence perpendicular to the sun's rays 
C)  Maintaining a bowl shape which reflects and concentrates solar energy 
D)  Maintaining a cushion shape 
E)  Extending its inflorescence along the ground to maximize conductive heat gain A

Question 2

Most insects use external sources of heat to achieve their operative temperature range. Heinrich's research on the sphinx moth (Manduca sexta) indicates that some insects can thermoregulate by using their flight muscles and

Accepted Answer

A)  using their blood as a coolant. 
B)  decreasing their metabolic rate. 
C)  possessing an internal respiratory system. 
D)  using a countercurrent heat exchange mechanism. 
E)  using a concurrent heat exchange mechanism. 
A)  using their blood as a coolant. 
B)  decreasing their metabolic rate. 
C)  possessing an internal respiratory system. 
D)  using a countercurrent heat exchange mechanism. 
E)  using a concurrent heat exchange mechanism. A

Question 3

Dolphins use ________ to conserve body heat.

Accepted Answer

A)  concurrent heat exchange 
B)  countercurrent heat exchange 
C)  thoracic muscles 
D)  diet 
E)  All of the choices are correct. 
A)  concurrent heat exchange 
B)  countercurrent heat exchange 
C)  thoracic muscles 
D)  diet 
E)  All of the choices are correct. B

Question 4

Ectothermic poikilotherms can allocate more metabolic energy into body temperature regulation compared to endothermic homeotherms.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following are mismatched?

Accepted Answer

A)  Psychrophile: salt-loving microbe 
B)  Thermophile: heat-loving microbe 
C)  Poikilotherm: body temperature varies with environment 
D)  Homeotherm: constant body temperature 
E)  None of the choices are correct. 
A)  Psychrophile: salt-loving microbe 
B)  Thermophile: heat-loving microbe 
C)  Poikilotherm: body temperature varies with environment 
D)  Homeotherm: constant body temperature 
E)  None of the choices are correct.

Question 6

An animal will use different ________ to maintain an optimum operative temperature range.

Accepted Answer

The answer of An animal will use different ________ to...

Question 7

Plants, unlike animals, cannot thermoregulate.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following survival mechanisms help animals survive very cold temperatures?

Accepted Answer

A)  Hibernation 
B)  Countercurrent heat exchange 
C)  Basking 
D)  Both hibernation and countercurrent heat exchange 
E)  Both countercurrent heat exchange and basking 
A)  Hibernation 
B)  Countercurrent heat exchange 
C)  Basking 
D)  Both hibernation and countercurrent heat exchange 
E)  Both countercurrent heat exchange and basking

Question 9

Aquatic environments show less temperature variations than terrestrial environments.

Accepted Answer

A) True 
 B)False

Question 10

What statement accurately summarizes the changes in the distribution of A. arbustorum around Basel between 1900 and 1990?

Accepted Answer

A)  In 1993, A. arbustorum was found at all the same sites surveyed in the early 1900s, but at much lower densities. 
B)  In 1993, A. arbustorum was not found at 8 out of the 29 sites surveyed in the early 1900s. 
C)  In 1993, the sites where A. arbustorum was found were cooler and had lower elevations than the sites where the snail was not found. 
D)  In 1993, 8 of the 16 sites where A. arbustorum was not found had suitable vegetation but were close enough to urban areas to experience higher temperatures. 
A)  In 1993, A. arbustorum was found at all the same sites surveyed in the early 1900s, but at much lower densities. 
B)  In 1993, A. arbustorum was not found at 8 out of the 29 sites surveyed in the early 1900s. 
C)  In 1993, the sites where A. arbustorum was found were cooler and had lower elevations than the sites where the snail was not found. 
D)  In 1993, 8 of the 16 sites where A. arbustorum was not found had suitable vegetation but were close enough to urban areas to experience higher temperatures.

Question 11

In general, reptiles are considered to be

Accepted Answer

A)  ectotherms. 
B)  homeotherms. 
C)  endotherms. 
D)  endothermic poikilotherms. 
E)  endothermic heterotherms. 
A)  ectotherms. 
B)  homeotherms. 
C)  endotherms. 
D)  endothermic poikilotherms. 
E)  endothermic heterotherms.

Question 12

A population of sparrows is relocated from its native location at 50 meters above sea level to a new location 1500 meters above sea level. After a few weeks, the sparrows have acclimated to their new, lower oxygen environment. Would you expect the babies born after this time to go through their own acclimation period?

Accepted Answer

A)  No, because the changes induced by their parents' acclimation will be passed on to them. 
B)  No, because the babies are born at 1500 meters, it is their native habitat and they will not need to acclimate. 
C)  Yes, because the changes induced by their parents' acclimation will be not passed on to them. 
A)  No, because the changes induced by their parents' acclimation will be passed on to them. 
B)  No, because the babies are born at 1500 meters, it is their native habitat and they will not need to acclimate. 
C)  Yes, because the changes induced by their parents' acclimation will be not passed on to them.

Question 13

According to Kidron, Barzilay, and Sachs' research on the dune slopes of the Negev Desert, moss would most likely be found on ________ facing slopes due to ________.

Accepted Answer

A)  south; decreased evaporation rates 
B)  south; increased evaporation rates 
C)  north; increased evaporation rates 
D)  north; decreased evaporation rates 
E)  Moss does not grow in the Negev Desert. 
A)  south; decreased evaporation rates 
B)  south; increased evaporation rates 
C)  north; increased evaporation rates 
D)  north; decreased evaporation rates 
E)  Moss does not grow in the Negev Desert.

Question 14

If you wanted to measure the average kinetic motion in a mass of soil, you would find its ________.

Accepted Answer

A)  heat energy 
B)  temperature 
C)  molecular mass 
D)  potential energy 
A)  heat energy 
B)  temperature 
C)  molecular mass 
D)  potential energy

Question 15

It's a hot summer day, and you begin to sweat. What is the method of heat exchange?

Accepted Answer

A)  Conduction 
B)  Convection 
C)  Evaporation 
D)  Radiation 
E)  None of the choices are correct. 
A)  Conduction 
B)  Convection 
C)  Evaporation 
D)  Radiation 
E)  None of the choices are correct.

Question 16

What statements are accurate regarding Bennett and Lenski's experiments testing the principle of allocation? (Select all that apply.)

Accepted Answer

A)  Their results showed changes in fitness in E. coli but did not support the principle of allocation. 
B)  The fitness differences in the E. coli lines provided support for the principle of allocation. 
C)  Bacterial lines grown at low temperatures had lower fitness at high temperatures when compared with their ancestral lines. 
D)  Bacterial lines grown at high temperatures had reduced fitness at low temperatures when compared with their ancestral lines. 
A)  Their results showed changes in fitness in E. coli but did not support the principle of allocation. 
B)  The fitness differences in the E. coli lines provided support for the principle of allocation. 
C)  Bacterial lines grown at low temperatures had lower fitness at high temperatures when compared with their ancestral lines. 
D)  Bacterial lines grown at high temperatures had reduced fitness at low temperatures when compared with their ancestral lines.

Question 17

Bluefin tuna and mackerel sharks are considered to be endothermic fish because their

Accepted Answer

A)  lateral swim muscles heat cool venous blood, thereby elevating their body temperature above the surrounding water temperature. 
B)  abdominal swim muscles heat cool venous blood, thereby matching their body temperature to the surrounding water temperature. 
C)  lateral swim muscles cool warm arterial blood, thereby elevating their body temperature above the surrounding water temperature. 
D)  lateral swim muscles heat cool arterial blood, thereby elevating their body temperature above the surrounding water temperature. 
E)  lateral swim muscles heat cool arterial blood, thereby matching their body temperature to the surrounding water temperature. 
A)  lateral swim muscles heat cool venous blood, thereby elevating their body temperature above the surrounding water temperature. 
B)  abdominal swim muscles heat cool venous blood, thereby matching their body temperature to the surrounding water temperature. 
C)  lateral swim muscles cool warm arterial blood, thereby elevating their body temperature above the surrounding water temperature. 
D)  lateral swim muscles heat cool arterial blood, thereby elevating their body temperature above the surrounding water temperature. 
E)  lateral swim muscles heat cool arterial blood, thereby matching their body temperature to the surrounding water temperature.

Question 18

The body temperature of ________ varies directly with the environment.

Accepted Answer

A)  homeotherms 
B)  poikilotherms 
C)  psychrotherms 
D)  envirotherms 
E)  microtherms 
A)  homeotherms 
B)  poikilotherms 
C)  psychrotherms 
D)  envirotherms 
E)  microtherms

Question 19

All of the following are components that influence a microclimate except

Accepted Answer

A)  burrows. 
B)  vegetation. 
C)  ground color. 
D)  topography. 
E)  None of the choices are correct. 
A)  burrows. 
B)  vegetation. 
C)  ground color. 
D)  topography. 
E)  None of the choices are correct.

Question 20

Desert plants can prevent overheating by utilizing all of the following temperature regulating methods except

Accepted Answer

A)  paraheliotropism. 
B)  decreasing rates of radiative heating. 
C)  decreasing conductive heating. 
D)  increasing evaporative cooling. 
E)  increasing convective cooling. 
A)  paraheliotropism. 
B)  decreasing rates of radiative heating. 
C)  decreasing conductive heating. 
D)  increasing evaporative cooling. 
E)  increasing convective cooling.

Exam 5: Temperature Relations

How does the skunk cabbage maintain the temperature of its inflorescence 15°C to 35°C above air ambient temperature?

Most insects use external sources of heat to achieve their operative temperature range. Heinrich's research on the sphinx moth (Manduca sexta) indicates that some insects can thermoregulate by using their flight muscles and

Dolphins use ________ to conserve body heat.

Ectothermic poikilotherms can allocate more metabolic energy into body temperature regulation compared to endothermic homeotherms.

Which of the following are mismatched?

An animal will use different ________ to maintain an optimum operative temperature range.

Plants, unlike animals, cannot thermoregulate.

Which of the following survival mechanisms help animals survive very cold temperatures?

Aquatic environments show less temperature variations than terrestrial environments.

What statement accurately summarizes the changes in the distribution of A. arbustorum around Basel between 1900 and 1990?

In general, reptiles are considered to be

According to Kidron, Barzilay, and Sachs' research on the dune slopes of the Negev Desert, moss would most likely be found on ________ facing slopes due to ________.

If you wanted to measure the average kinetic motion in a mass of soil, you would find its ________.

It's a hot summer day, and you begin to sweat. What is the method of heat exchange?

What statements are accurate regarding Bennett and Lenski's experiments testing the principle of allocation? (Select all that apply.)

Bluefin tuna and mackerel sharks are considered to be endothermic fish because their

The body temperature of ________ varies directly with the environment.

All of the following are components that influence a microclimate except

Desert plants can prevent overheating by utilizing all of the following temperature regulating methods except

Introduction to Ecology: Historical Foundations and Developing Frontiers

Life on Land

Life in Water

Population Genetics and Natural Selection

Water Relations

Energy and Nutrient Relations

Social Relations

Population Distribution and Abundance

Population Dynamics

Population Growth

Life Histories

Competition

Exploitative Interactions: Predation, Herbivory, Parasitism, and Disease

Mutualism

Species Abundance and Diversity

Species Interactions and Community Structure

Primary Production and Energy Flow

Nutrient Cycling and Retention

Succession and Stability

Landscape Ecology

Geographic Ecology

Global Ecology

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According to Kidron, Barzilay, and Sachs' research on the dune slopes of the Negev Desert, moss would most likely be found on facing slopes due to .