Question 1

Bony marine fish

Accepted Answer

A)  drink sea water. 
B)  secrete Na+ into the surrounding water. 
C)  are hyperosmotic compared to the surrounding water. 
D)  both drink sea water and secrete Na+ into the surrounding water. 
E)  drink sea water, secrete Na+ into the surrounding water, and are hyperosmotic compared to the surrounding water. 
A)  drink sea water. 
B)  secrete Na+ into the surrounding water. 
C)  are hyperosmotic compared to the surrounding water. 
D)  both drink sea water and secrete Na+ into the surrounding water. 
E)  drink sea water, secrete Na+ into the surrounding water, and are hyperosmotic compared to the surrounding water.

Question 2

In a terrestrial plant, water movement is as follows:

Accepted Answer

A)  from less negative water potential to a more negative water potential. 
B)  from more negative water potential to a less negative water potential. 
C)  from less positive water potential to a more positive water potential. 
D)  from zero water potential to a more negative water potential. 
E)  from zero water potential to a more positive water potential. 
A)  from less negative water potential to a more negative water potential. 
B)  from more negative water potential to a less negative water potential. 
C)  from less positive water potential to a more positive water potential. 
D)  from zero water potential to a more negative water potential. 
E)  from zero water potential to a more positive water potential.

Question 3

Sharks, rays, and skates retain urea and trimethylamine oxide (TMAO) within their blood allowing them to become only slightly hyperosmotic thereby reducing the cost of osmoregulation.

Accepted Answer

A) True 
 B)False

Question 4

A desert scorpion will use all of the following mechanisms in order to survive in the desert except

Accepted Answer

A)  waterproof cuticle. 
B)  nocturnal behavior. 
C)  burrowing. 
D)  decreased metabolic rate. 
E)  None of the choices are correct. 
A)  waterproof cuticle. 
B)  nocturnal behavior. 
C)  burrowing. 
D)  decreased metabolic rate. 
E)  None of the choices are correct.

Question 5

A(n) ________ marine fish gains water through osmosis and loses salts through diffusion.

Accepted Answer

A)  hyperosmotic 
B)  hypoosmotic 
C)  isoosmotic 
D)  osmotic 
E)  None of the choices are correct. 
A)  hyperosmotic 
B)  hypoosmotic 
C)  isoosmotic 
D)  osmotic 
E)  None of the choices are correct.

Question 6

If a person were to place a marine fish into a fresh water lake, water would diffuse

Accepted Answer

A)  up its concentration gradient and enter the fish. 
B)  down its concentration gradient and enter the fish. 
C)  down its concentration gradient and exit the fish. 
D)  up its concentration gradient and exit the fish. 
E)  None of the choices are correct. 
A)  up its concentration gradient and enter the fish. 
B)  down its concentration gradient and enter the fish. 
C)  down its concentration gradient and exit the fish. 
D)  up its concentration gradient and exit the fish. 
E)  None of the choices are correct.

Question 7

Saturation water vapor pressure

Accepted Answer

A)  increases with temperature. 
B)  decreases with temperature. 
C)  parallels vapor pressure density. 
D)  both increases with temperature and parallels vapor pressure density. 
E)  both decreases with temperature and parallels vapor pressure density. 
A)  increases with temperature. 
B)  decreases with temperature. 
C)  parallels vapor pressure density. 
D)  both increases with temperature and parallels vapor pressure density. 
E)  both decreases with temperature and parallels vapor pressure density.

Question 8

Which of the following may be used to study the uptake of water by plants in a natural ecosystem?

Accepted Answer

A)  Non-stable isotope analysis 
B)  Radioactive isotope analysis 
C)  14C isotope analysis 
D)  Stable isotope analysis 
E)  Water isotope analysis 
A)  Non-stable isotope analysis 
B)  Radioactive isotope analysis 
C)  14C isotope analysis 
D)  Stable isotope analysis 
E)  Water isotope analysis

Question 9

All of the following contribute to the movement of water in a terrestrial plant except

Accepted Answer

A)  transpiration. 
B)  drying power of the sun. 
C)  hydrogen bonding. 
D)  water potential. 
E)  None of the choices are correct. 
A)  transpiration. 
B)  drying power of the sun. 
C)  hydrogen bonding. 
D)  water potential. 
E)  None of the choices are correct.

Question 10

The camel and saguaro cactus both

Accepted Answer

A)  acquire massive amounts of water when water is available. 
B)  allow their internal temperature to rise. 
C)  reduce surface area exposed to direct sunlight. 
D)  reflect sunlight with dense hairs. 
E)  All of the choices are correct. 
A)  acquire massive amounts of water when water is available. 
B)  allow their internal temperature to rise. 
C)  reduce surface area exposed to direct sunlight. 
D)  reflect sunlight with dense hairs. 
E)  All of the choices are correct.

Question 11

The Namib Desert beetle, Onymacris unguicularis, obtains its water through positional maneuvers during foggy weather conditions.

Accepted Answer

A) True 
 B)False

Question 12

Water conservation mechanisms used by plants adapted to dry conditions include

Accepted Answer

A)  dropping leaves. 
B)  thick leaves. 
C)  fewer stomata. 
D)  dormancy. 
E)  All of the choices are correct. 
A)  dropping leaves. 
B)  thick leaves. 
C)  fewer stomata. 
D)  dormancy. 
E)  All of the choices are correct.

Question 13

The evaporative water loss by an organism is high when the

Accepted Answer

A)  vapor pressure deficit is low. 
B)  relative humidity is high. 
C)  water concentration gradient from the organism to the air is reduced. 
D)  actual water vapor density is very low relative to the saturation water vapor density. 
E)  All of the choices are correct. 
A)  vapor pressure deficit is low. 
B)  relative humidity is high. 
C)  water concentration gradient from the organism to the air is reduced. 
D)  actual water vapor density is very low relative to the saturation water vapor density. 
E)  All of the choices are correct.

Question 14

The potential for evaporative water loss by terrestrial organisms

Accepted Answer

A)  decreases with increased vapor pressure deficit. 
B)  increases with decreased vapor pressure deficit. 
C)  increases with increased vapor pressure deficit. 
D)  None of the choices are correct. 
A)  decreases with increased vapor pressure deficit. 
B)  increases with decreased vapor pressure deficit. 
C)  increases with increased vapor pressure deficit. 
D)  None of the choices are correct.

Question 15

In general, a plant found growing in the desert can be expected to have a low shoot to high root biomass ratio.

Accepted Answer

A) True 
 B)False

Question 16

In general, desert organisms try to decrease their rate of evaporative cooling in order to conserve water. Which of the following desert organisms sweats?

Accepted Answer

A)  Camel 
B)  Cactus 
C)  Cicada 
D)  Scorpion 
E)  Tiger beetle 
A)  Camel 
B)  Cactus 
C)  Cicada 
D)  Scorpion 
E)  Tiger beetle

Question 17

D:1H ratios in plants can be used to evaluate relative use of summer and winter rainfalls because summer rains are ________ in D and winter rains are ________ in D.

Accepted Answer

rich; depl

Bony marine fish

In a terrestrial plant, water movement is as follows:

Sharks, rays, and skates retain urea and trimethylamine oxide (TMAO) within their blood allowing them to become only slightly hyperosmotic thereby reducing the cost of osmoregulation.

A desert scorpion will use all of the following mechanisms in order to survive in the desert except

A(n) ________ marine fish gains water through osmosis and loses salts through diffusion.

If a person were to place a marine fish into a fresh water lake, water would diffuse

Saturation water vapor pressure

Which of the following may be used to study the uptake of water by plants in a natural ecosystem?

All of the following contribute to the movement of water in a terrestrial plant except

The camel and saguaro cactus both

The Namib Desert beetle, Onymacris unguicularis, obtains its water through positional maneuvers during foggy weather conditions.

Water conservation mechanisms used by plants adapted to dry conditions include

The evaporative water loss by an organism is high when the

The potential for evaporative water loss by terrestrial organisms

In general, a plant found growing in the desert can be expected to have a low shoot to high root biomass ratio.

In general, desert organisms try to decrease their rate of evaporative cooling in order to conserve water. Which of the following desert organisms sweats?

D:1H ratios in plants can be used to evaluate relative use of summer and winter rainfalls because summer rains are in D and winter rains are in D.

Introduction to Ecology: Historical Foundations and Developing Frontiers

Life on Land

Life in Water

Population Genetics and Natural Selection

Temperature 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 6: Water Relations

Bony marine fish

In a terrestrial plant, water movement is as follows:

Sharks, rays, and skates retain urea and trimethylamine oxide (TMAO) within their blood allowing them to become only slightly hyperosmotic thereby reducing the cost of osmoregulation.

A desert scorpion will use all of the following mechanisms in order to survive in the desert except

A(n) ________ marine fish gains water through osmosis and loses salts through diffusion.

If a person were to place a marine fish into a fresh water lake, water would diffuse

Saturation water vapor pressure

Which of the following may be used to study the uptake of water by plants in a natural ecosystem?

All of the following contribute to the movement of water in a terrestrial plant except

The camel and saguaro cactus both

The Namib Desert beetle, Onymacris unguicularis, obtains its water through positional maneuvers during foggy weather conditions.

Water conservation mechanisms used by plants adapted to dry conditions include

The evaporative water loss by an organism is high when the

The potential for evaporative water loss by terrestrial organisms

In general, a plant found growing in the desert can be expected to have a low shoot to high root biomass ratio.

In general, desert organisms try to decrease their rate of evaporative cooling in order to conserve water. Which of the following desert organisms sweats?

D:1H ratios in plants can be used to evaluate relative use of summer and winter rainfalls because summer rains are ________ in D and winter rains are ________ in D.

Introduction to Ecology: Historical Foundations and Developing Frontiers

Life on Land

Life in Water

Population Genetics and Natural Selection

Temperature 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

D:1H ratios in plants can be used to evaluate relative use of summer and winter rainfalls because summer rains are in D and winter rains are in D.