Question 1

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 2

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 3

You are a student working in the laboratory of a researcher who studies rainbow trout. A power outage over the weekend results in temperatures of over 25F1F1F1S1F1F1F10C in the large pools which house the fish. When you arrive Monday morning you notice the fish are swimming on their sides or swimming in spirals. What conclusions can you draw?

Accepted Answer

A)  the fish are suffering thermal stress 
B)  the fish are experiencing improper neuronal function 
C)  the affinity of acetylcholinesterase for acetylcholine is reduced 
D)  the temperature of the water is affecting fish enzyme shape and flexibility 
E)  All of the choices are correct. 
A)  the fish are suffering thermal stress 
B)  the fish are experiencing improper neuronal function 
C)  the affinity of acetylcholinesterase for acetylcholine is reduced 
D)  the temperature of the water is affecting fish enzyme shape and flexibility 
E)  All of the choices are correct.

Question 4

Metabolic heat (Hm) is the heat

Accepted Answer

A)  energy intake an organism must have for movement. 
B)  released during cellular respiration. 
C)  energy needed in order to undergo cellular respiration. 
D)  energy loss due to evaporation. 
E)  None of the choices are correct. 
A)  energy intake an organism must have for movement. 
B)  released during cellular respiration. 
C)  energy needed in order to undergo cellular respiration. 
D)  energy loss due to evaporation. 
E)  None of the choices are correct.

Question 5

Torpor and hibernation share all of the following except:

Accepted Answer

A)  duration. 
B)  decreased body temperature. 
C)  decreased metabolic rate. 
D)  decreased energy demand. 
E)  None of the choices are correct. 
A)  duration. 
B)  decreased body temperature. 
C)  decreased metabolic rate. 
D)  decreased energy demand. 
E)  None of the choices are correct.

Question 6

It is a very hot day, and you jump into a lake to cool off. What is the method of heat exchange?

Accepted Answer

A)  conduction 
B)  radiation 
C)  evaporation 
D)  convection 
E)  None of the choices are correct. 
A)  conduction 
B)  radiation 
C)  evaporation 
D)  convection 
E)  None of the choices are correct.

Question 7

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 8

Macroclimates and microclimates vary only slightly from one another in terms of temperature and moisture.

Accepted Answer

A) True 
 B)False

Question 9

Mammalian and avian aquatic endotherms use all of the following mechanisms to thermoregulate except:

Accepted Answer

A)  fat 
B)  internal respiratory systems 
C)  fur or feathers 
D)  concurrent heat exchange 
E)  countercurrent heat exchange 
A)  fat 
B)  internal respiratory systems 
C)  fur or feathers 
D)  concurrent heat exchange 
E)  countercurrent heat exchange

Question 10

The thermal neutral zone of a homeothermic animal is

Accepted Answer

A)  the temperature range at which conductive heat gain and convective heat loss are equal. 
B)  the temperature range at which psychrophilic and thermophilic enzymes are both operating. 
C)  the temperature range at which the metabolizable energy intake equals metabolizable energy output. 
D)  the temperature range over which the metabolic rate does not change. 
E)  None of the choices are correct. 
A)  the temperature range at which conductive heat gain and convective heat loss are equal. 
B)  the temperature range at which psychrophilic and thermophilic enzymes are both operating. 
C)  the temperature range at which the metabolizable energy intake equals metabolizable energy output. 
D)  the temperature range over which the metabolic rate does not change. 
E)  None of the choices are correct.

Question 11

The thermal stability of aquatic environments is a result of the ______.

Accepted Answer

A)  high specific heat of water 
B)  low latent heat of vaporization of water 
C)  low latent heat of fusion of water 
D)  All of the choices are correct. 
E)  both high specific heat of water and low latent heat of vaporization of water 
A)  high specific heat of water 
B)  low latent heat of vaporization of water 
C)  low latent heat of fusion of water 
D)  All of the choices are correct. 
E)  both high specific heat of water and low latent heat of vaporization of water

Question 12

In general, reptiles are considered to be a/an?

Accepted Answer

A)  poikilotherm 
B)  homeotherm 
C)  endotherm 
D)  heterotherm 
E)  two of the choices are correct 
A)  poikilotherm 
B)  homeotherm 
C)  endotherm 
D)  heterotherm 
E)  two of the choices are correct

Question 13

The arctic and alpine cushion plants and the Camnula grasshopper both use __________________ to aid in thermoregulation.

Accepted Answer

A)  countercurrent heat exchange mechanisms 
B)  endothermic methods 
C)  increased water retention 
D)  torpor 
E)  dark pigmentation 
A)  countercurrent heat exchange mechanisms 
B)  endothermic methods 
C)  increased water retention 
D)  torpor 
E)  dark pigmentation

Question 14

How does the skunk cabbage maintain the temperature of its inflorescence 15F1F1F1S1F1F1F10C to 35F1F1F1S1F1F1F10C 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

Question 15

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.

The body temperature of ____________ varies directly with the environment.

All of the following are components that influence a microclimate except:

Metabolic heat (H_m) is the heat

Torpor and hibernation share all of the following except:

It is a very hot day, and you jump into a lake to cool off. What is the method of heat exchange?

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

Macroclimates and microclimates vary only slightly from one another in terms of temperature and moisture.

Mammalian and avian aquatic endotherms use all of the following mechanisms to thermoregulate except:

The thermal neutral zone of a homeothermic animal is

The thermal stability of aquatic environments is a result of the ______.

In general, reptiles are considered to be a/an?

The arctic and alpine cushion plants and the Camnula grasshopper both use __________________ to aid in thermoregulation.

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

Dolphins use __________________ to conserve body heat.

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

Socail 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

Filters

Exam 5: Temperature Relations

The body temperature of ____________ varies directly with the environment.

All of the following are components that influence a microclimate except:

Metabolic heat (Hm) is the heat

Torpor and hibernation share all of the following except:

It is a very hot day, and you jump into a lake to cool off. What is the method of heat exchange?

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

Macroclimates and microclimates vary only slightly from one another in terms of temperature and moisture.

Mammalian and avian aquatic endotherms use all of the following mechanisms to thermoregulate except:

The thermal neutral zone of a homeothermic animal is

The thermal stability of aquatic environments is a result of the ______.

In general, reptiles are considered to be a/an?

The arctic and alpine cushion plants and the Camnula grasshopper both use __________________ to aid in thermoregulation.

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

Dolphins use __________________ to conserve body heat.

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

Socail 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

Filters

Metabolic heat (H_m) is the heat