Question 1

The arctic flower,Dryas integrifolia,regulates the temperature of its reproductive structures by

Accepted Answer

A) sun-tracking behavior. 
B) increasing its metabolic rate. 
C) dark petal coloration. 
D) both sun-tracking behavior and increasing its metabolic rate. 
E) both increasing its metabolic rate and dark petal coloration. 
A) sun-tracking behavior. 
B) increasing its metabolic rate. 
C) dark petal coloration. 
D) both sun-tracking behavior and increasing its metabolic rate. 
E) both increasing its metabolic rate and dark petal coloration.

Question 2

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 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 25 $\degree$C 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

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 5

Plants,unlike animals,cannot thermoregulate.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following survival mechanisms is/are best suited for intense heat and drought?

Accepted Answer

A) hibernation 
B) torpor 
C) estivation 
D) both hibernation and torpor 
E) both torpor and estivation 
A) hibernation 
B) torpor 
C) estivation 
D) both hibernation and torpor 
E) both torpor and estivation

Question 7

Research indicates that the broad tailed hummingbird will enter into torpor

Accepted Answer

A) if a minimum surrounding air temperature is met. 
B) during a summer drought. 
C) if their body fat drops below 15%. 
D) if darkness exceeds daylight hours. 
E) if insufficient nectar is obtained. 
A) if a minimum surrounding air temperature is met. 
B) during a summer drought. 
C) if their body fat drops below 15%. 
D) if darkness exceeds daylight hours. 
E) if insufficient nectar is obtained.

Question 8

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 9

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.

Question 10

Poikilothermic organisms can allocate less energy into biomass production compared to homeothermic organisms.

Accepted Answer

A) True 
 B)False

Question 11

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

Accepted Answer

A) True 
 B)False

Question 12

Getting up from your chair you realize that it is warm.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 13

How does the skunk cabbage maintain the temperature of its inflorescence 15 $\degree$C to 35 $\degree$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

Question 14

How are the studies performed on rainbow trout (Oncorhynchus mykiss)and the moss Pleurozium schreberi and the desert shrub Atriplex lentiformis similar?

Accepted Answer

A) Both studies examine the effects of microclimates. 
B) Both studies support the concept that species operate within a narrow optimum temperature range. 
C) Both studies are coupled to enzymatic activity. 
D) Both studies examine the effects of microclimates and studies support the concept that species operate within a narrow optimum temperature range. 
E) Both studies support the concept that species operate within a narrow optimum temperature range and are coupled to enzymatic activity. 
A) Both studies examine the effects of microclimates. 
B) Both studies support the concept that species operate within a narrow optimum temperature range. 
C) Both studies are coupled to enzymatic activity. 
D) Both studies examine the effects of microclimates and studies support the concept that species operate within a narrow optimum temperature range. 
E) Both studies support the concept that species operate within a narrow optimum temperature range and are coupled to enzymatic activity.

Question 15

Homeothermic organisms use a significant portion of their metabolic energy for endothermy.

Accepted Answer

A) True 
 B)False

The arctic flower,Dryas integrifolia,regulates the temperature of its reproductive structures by

The body temperature of ____________ varies directly with the environment.

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

Plants,unlike animals,cannot thermoregulate.

Which of the following survival mechanisms is/are best suited for intense heat and drought?

Research indicates that the broad tailed hummingbird will enter into torpor

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

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

Poikilothermic organisms can allocate less energy into biomass production compared to homeothermic organisms.

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

Getting up from your chair you realize that it is warm.What is the method of heat exchange?

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

How are the studies performed on rainbow trout (Oncorhynchus mykiss)and the moss Pleurozium schreberi and the desert shrub Atriplex lentiformis similar?

Homeothermic organisms use a significant portion of their metabolic energy for endothermy.

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

Filters

Exam 5: Temperature Relations

The arctic flower,Dryas integrifolia,regulates the temperature of its reproductive structures by

The body temperature of ____________ varies directly with the environment.

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

Plants,unlike animals,cannot thermoregulate.

Which of the following survival mechanisms is/are best suited for intense heat and drought?

Research indicates that the broad tailed hummingbird will enter into torpor

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

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

Poikilothermic organisms can allocate less energy into biomass production compared to homeothermic organisms.

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

Getting up from your chair you realize that it is warm.What is the method of heat exchange?

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

How are the studies performed on rainbow trout (Oncorhynchus mykiss)and the moss Pleurozium schreberi and the desert shrub Atriplex lentiformis similar?

Homeothermic organisms use a significant portion of their metabolic energy for endothermy.

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

Filters

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