Question 1

Discuss the efficiency of swimming versus walking or flying,in energy cost per kilogram per unit distance covered.How does this translate into advantages for being small or large?

Accepted Answer

Swimming, walking, and flying all have d...

Question 2

Why is there a relationship between fish size and speed? Does this not start an evolutionary speed race driving predator and prey to grow to ever increasing lengths? Why do any small fish survive?

Accepted Answer

The relationship between fish size and s...

Question 3

The primary propulsive mechanism of a fish is

Accepted Answer

A)   its trunk and caudal musculature.
B)   movement of water into the mouth and forced out the gills.
C)   movement of the pectoral fins.
D)   movement of the pelvic fins.
E)   None of the choices are correctF) None of the above
G) B) and C)

Question 4

Unlike other vertebrates,the body fluids of hagfishes are

Accepted Answer

A)   Strongly hypoosmotic to seawater.
B)   Strongly hyperosmotic to seawater.
C)   In osmotic equilibrium with seawater.
D)   Very concentrated, with over 80% blood solids.
E)   Under high internal pressure near the surface.F) C) and D)
G) B) and D)

Question 5

The mechanism whereby buoyancy is achieved in different kinds of fishes is

Accepted Answer

A)   through the presence of a large, oily liver when a swim bladder is not present.
B)   through the presence of a swim bladder that is kept filled as the fish periodically swims to the surface and gulps air.
C)   through the presence of a swim bladder that is regulated internally by structures that add or remove gas from the bladder by capillary beds.
D)   All of the choices are methods for achieving buoyancy.
E)   None of the choices are correct.F) C) and E)
G) B) and D)

Question 6

The cladistic use of the term "fish"

Accepted Answer

A)   applies to a monophyletic group of aquatic vertebrates.
B)   includes all swimming animals from the amphioxus lancelet up to but not including the true amphibians.
C)   would also include the common ancestor with land vertebrates (including us)  and a strict cladist would then include us in "fish."
D)   only includes aquatic vertebrates with gills.
E)   reflects any vertebrate that is adapted to water.F) C) and E)
G) C) and D)

Question 7

How does a shark detect potential prey or distinguish it from floating non-living debris?

Accepted Answer

Sharks have evolved a sophisticated arra...

Question 8

In North America,knowledge of the biology of lampreys

Accepted Answer

A)   has led to the understanding that all native lampreys are parasitic.
B)   led to the limited control of lampreys by larvicides and release of sterile males.
C)   led to understanding that prey fish always die after lamprey has gorged and abandoned the prey
D)   All of the choices are correctE) None of the above
F) All of the above

Question 9

The gills of bony fishes are covered with a movable flap called the __________.

Accepted Answer

The answer of The gills of bony fishes are covered...

Question 10

The most primitive of the early fishes were the

Accepted Answer

A)   Agnathans.
B)   Gnathostomes.
C)   Acanthodians.
D)   Lobe-finned fishes.
E)   Ray-finned fishes.F) C) and D)
G) A) and E)

Question 11

The cartilaginous fishes do NOT include

Accepted Answer

A)   skates.
B)   rays.
C)   sharks.
D)   eels.
E)   All of the choices are cartilaginous fishesF) B) and C)
G) A) and E)

Question 12

The class __________ is composed of vertebrates having eel-like bodies,a biting mouth with two rows of eversible teeth,and numerous slime glands.

Accepted Answer

The answer of The class __________ is composed of vertebrates...

Question 13

Discuss the difficulty of sound detection faced by fish and the adaptations that have evolved in certain groups to help increase their hearing sensitivity.

Accepted Answer

Sound detection in water presents unique...

Question 14

How do we determine the age of a fish from its scales? Why are there rings on the scales? What do the rings represent?

Accepted Answer

The age of a fish can be determined by e...

Question 15

Sarcopterygians are the sister group of the ________.

Accepted Answer

The answer of Sarcopterygians are the sister group of the...

Question 16

Darters are fish that live in fast-running rapids; they eat surface insects,they rest on the bottom avoiding the push of the water,and make brief frantic dashes to the surface to feed.If they swam midstream,they would expend a huge amount of energy.What physiological strategy allows them to live on the bottom?

Accepted Answer

A)   Lack of gills
B)   Loss of a lateral-line
C)   Loss of a swim bladder
D)   Reduction in fin size and number
E)   Expansion of a swim bladder into a lungF) A) and C)
G) All of the above

Question 17

What feature(s) separates a shark from a blue-gill?

Accepted Answer

A)   Gill slits versus operculum
B)   Cartilage versus bones
C)   Internal versus external fertilization
D)   No swim bladder versus swim bladder
E)   All of the choices are correct distinctionsF) A) and B)
G) A) and C)

Question 18

Sharks remove excess sodium chloride from blood by means of the kidney and the ____________ gland.

Accepted Answer

The answer of Sharks remove excess sodium chloride from blood...

Question 19

Migratory fishes,such as the Atlantic salmon,that spend their adult lives at sea but return to fresh water to spawn are called ___________.

Accepted Answer

The answer of Migratory fishes,such as the Atlantic salmon,that spend...

Question 20

To replace water lost osmotically,marine fish

Accepted Answer

A)   pump water inward across the gill surface by means of special absorptive cells.
B)   drink seawater and then pump extra salt outward across the gill surface by means of salt secretory cells, and excrete the remaining ions in the feces.
C)   increase glomerular filtration by the kidney.
D)   drink much more seawater and accumulate unwanted salts in crystalline form.
E)   produce water metabolically by the oxidation of food stuffs.F) All of the above
G) B) and C)

Exam 24: Fishes

The class __________ is composed of vertebrates having eel-like bodies,a biting mouth with two rows of eversible teeth,and numerous slime glands.

Correct Answer
verified

The cartilaginous fishes do NOT include

Correct Answer
verified

Why is there a relationship between fish size and speed? Does this not start an evolutionary speed race driving predator and prey to grow to ever increasing lengths? Why do any small fish survive?

Correct Answer
Answered by ExamLex AI
The relationship between fish size and s...
View Answer

The primary propulsive mechanism of a fish is

Correct Answer
verified

The gills of bony fishes are covered with a movable flap called the __________.

Correct Answer
verified

Sharks remove excess sodium chloride from blood by means of the kidney and the ____________ gland.

Correct Answer
verified

The most primitive of the early fishes were the

Correct Answer
verified

Discuss the difficulty of sound detection faced by fish and the adaptations that have evolved in certain groups to help increase their hearing sensitivity.

Correct Answer
Answered by ExamLex AI
Sound detection in water presents unique...
View Answer

Unlike other vertebrates,the body fluids of hagfishes are

Correct Answer
verified

Correct Answer
verified

Sarcopterygians are the sister group of the ________.

Correct Answer
verified

To replace water lost osmotically,marine fish

Correct Answer
verified

The mechanism whereby buoyancy is achieved in different kinds of fishes is

Correct Answer
verified

Migratory fishes,such as the Atlantic salmon,that spend their adult lives at sea but return to fresh water to spawn are called ___________.

Correct Answer
verified

How do we determine the age of a fish from its scales? Why are there rings on the scales? What do the rings represent?

Correct Answer
Answered by ExamLex AI
The age of a fish can be determined by e...
View Answer

The cladistic use of the term "fish"

Correct Answer
verified

What feature(s) separates a shark from a blue-gill?

Correct Answer
verified

How does a shark detect potential prey or distinguish it from floating non-living debris?

Correct Answer
Answered by ExamLex AI
Sharks have evolved a sophisticated arra...
View Answer

In North America,knowledge of the biology of lampreys

Correct Answer
verified

Discuss the efficiency of swimming versus walking or flying,in energy cost per kilogram per unit distance covered.How does this translate into advantages for being small or large?

Correct Answer
Answered by ExamLex AI
Swimming, walking, and flying all have d...
View Answer

Exam 24: Fishes

The class __________ is composed of vertebrates having eel-like bodies,a biting mouth with two rows of eversible teeth,and numerous slime glands.

Correct AnswerverifiedShow Answer

The cartilaginous fishes do NOT include

Correct AnswerverifiedShow Answer

Why is there a relationship between fish size and speed? Does this not start an evolutionary speed race driving predator and prey to grow to ever increasing lengths? Why do any small fish survive?

Correct AnswerAnswered by ExamLex AIThe relationship between fish size and s...View AnswerShow Answer

The primary propulsive mechanism of a fish is

Correct AnswerverifiedShow Answer

The gills of bony fishes are covered with a movable flap called the __________.

Correct AnswerverifiedShow Answer

Sharks remove excess sodium chloride from blood by means of the kidney and the ____________ gland.

Correct AnswerverifiedShow Answer

The most primitive of the early fishes were the

Correct AnswerverifiedShow Answer

Discuss the difficulty of sound detection faced by fish and the adaptations that have evolved in certain groups to help increase their hearing sensitivity.

Correct AnswerAnswered by ExamLex AISound detection in water presents unique...View AnswerShow Answer

Unlike other vertebrates,the body fluids of hagfishes are

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Sarcopterygians are the sister group of the ________.

Correct AnswerverifiedShow Answer

To replace water lost osmotically,marine fish

Correct AnswerverifiedShow Answer

The mechanism whereby buoyancy is achieved in different kinds of fishes is

Correct AnswerverifiedShow Answer

Migratory fishes,such as the Atlantic salmon,that spend their adult lives at sea but return to fresh water to spawn are called ___________.

Correct AnswerverifiedShow Answer

How do we determine the age of a fish from its scales? Why are there rings on the scales? What do the rings represent?

Correct AnswerAnswered by ExamLex AIThe age of a fish can be determined by e...View AnswerShow Answer

The cladistic use of the term "fish"

Correct AnswerverifiedShow Answer

What feature(s) separates a shark from a blue-gill?

Correct AnswerverifiedShow Answer

How does a shark detect potential prey or distinguish it from floating non-living debris?

Correct AnswerAnswered by ExamLex AISharks have evolved a sophisticated arra...View AnswerShow Answer

In North America,knowledge of the biology of lampreys

Correct AnswerverifiedShow Answer

Discuss the efficiency of swimming versus walking or flying,in energy cost per kilogram per unit distance covered.How does this translate into advantages for being small or large?

Correct AnswerAnswered by ExamLex AISwimming, walking, and flying all have d...View AnswerShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
The relationship between fish size and s...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
Sound detection in water presents unique...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
The age of a fish can be determined by e...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
Sharks have evolved a sophisticated arra...
View Answer

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
Swimming, walking, and flying all have d...
View Answer