Question 1

Cartilaginous fishes

Accepted Answer

A)  lost the heavy dermal armor of their ancestors. 
B)  had ancestors with bone but moved to an all cartilage skeleton. 
C)  flourished in the Devonian and Carboniferous but nearly went extinct at the end of the Paleozoic. 
D)  lack a swim bladder. 
E)  All of the choices are correct 
A)  lost the heavy dermal armor of their ancestors. 
B)  had ancestors with bone but moved to an all cartilage skeleton. 
C)  flourished in the Devonian and Carboniferous but nearly went extinct at the end of the Paleozoic. 
D)  lack a swim bladder. 
E)  All of the choices are correct E

Question 2

The gas gland of the teleost swim bladder contains a remarkable network of blood capillaries called the ___________ _____________.

Accepted Answer

rete mirabile

Question 3

Teleost fishes have a type of tail that is called a __________ tail.

Accepted Answer

homocercal

Question 4

Discuss the vascularization of the gills of fish.Is this homologous or analogous to the vascularization of mammalian lungs?

Accepted Answer

The vascularization of the gills of fish

Question 5

Shark reproduction and development involves

Accepted Answer

A)  clearing a bottom area in order that the female can lay eggs and the male can deposit sperm over them. 
B)  no production of yolk at all but the first development of a primitive placenta in all sharks. 
C)  substantial care of young after the eggs are laid or young are born. 
D)  cases of oviparous, ovoviviparous, and viviparous strategies. 
E)  a larval stage quite different from the adult. 
A)  clearing a bottom area in order that the female can lay eggs and the male can deposit sperm over them. 
B)  no production of yolk at all but the first development of a primitive placenta in all sharks. 
C)  substantial care of young after the eggs are laid or young are born. 
D)  cases of oviparous, ovoviviparous, and viviparous strategies. 
E)  a larval stage quite different from the adult.

Question 6

The most diverse fish group is the

Accepted Answer

A)  ray-finned fishes. 
B)  lung-fishes. 
C)  lobe-finned fishes. 
D)  cartilaginous fishes. 
E)  None of the choices are correct 
A)  ray-finned fishes. 
B)  lung-fishes. 
C)  lobe-finned fishes. 
D)  cartilaginous fishes. 
E)  None of the choices are correct

Question 7

How is gas moved into and out of the teleost swim bladder? Describe the physiological process in detail.

Accepted Answer

The teleost swim bladder is a gas-filled

Question 8

The spiral valve in the intestine of a shark serves to

Accepted Answer

A)  release strong acids to aid digestion. 
B)  function as a liver in producing bile salts. 
C)  entrap food molecules in a mucus strand. 
D)  slow passage of food and increase absorptive surface area. 
E)  propel food through the tract at a faster rate. 
A)  release strong acids to aid digestion. 
B)  function as a liver in producing bile salts. 
C)  entrap food molecules in a mucus strand. 
D)  slow passage of food and increase absorptive surface area. 
E)  propel food through the tract at a faster rate.

Question 9

The hagfish has a keen sense of

Accepted Answer

A)  depth and water pressure in order to control its swim bladder. 
B)  smell and touch in order to locate dead and dying fish. 
C)  sight in order to locate dying fish and annelids, molluscs, and crustaceans. 
D)  hearing in order to locate prey in dark depths. 
E)  All of the choices are well-developed in hagfish 
A)  depth and water pressure in order to control its swim bladder. 
B)  smell and touch in order to locate dead and dying fish. 
C)  sight in order to locate dying fish and annelids, molluscs, and crustaceans. 
D)  hearing in order to locate prey in dark depths. 
E)  All of the choices are well-developed in hagfish

Question 10

Describe the life cycle of the eel.Contrast this migration with the Pacific salmon.

Accepted Answer

The life cycle of the eel is quite uniqu

Question 11

Ampullary organs of Lorenzini

Accepted Answer

A)  are located along the lateral-line of a shark. 
B)  help the shark see prey at night. 
C)  help the shark detect bioelectric fields at a close range. 
D)  detect orientation similar to that perceived by our semicircular canals. 
E)  amplify sounds of a struggling prey from great distances. 
A)  are located along the lateral-line of a shark. 
B)  help the shark see prey at night. 
C)  help the shark detect bioelectric fields at a close range. 
D)  detect orientation similar to that perceived by our semicircular canals. 
E)  amplify sounds of a struggling prey from great distances.

Question 12

Explain why there are relics of the transformation of Meckel's cartilage during the development of modern sharks.

Accepted Answer

During the development of modern sharks,

Question 13

The ovoviviparous sharks are those that

Accepted Answer

A)  lay eggs after external fertilization. 
B)  bear their young alive after retaining the eggs in the oviduct but with no further nourishment except from that of the yolk. 
C)  lay eggs after internal fertilization. 
D)  bear their young alive after external fertilization. 
E)  feed developing young a nutritious "uterine milk." 
A)  lay eggs after external fertilization. 
B)  bear their young alive after retaining the eggs in the oviduct but with no further nourishment except from that of the yolk. 
C)  lay eggs after internal fertilization. 
D)  bear their young alive after external fertilization. 
E)  feed developing young a nutritious "uterine milk."

Question 14

Technically a teleost fish has a four-chambered heart.Yet this is not the same as the four-chambered heart of a bird or mammal.Compare and contrast these two "four chambered" hearts.

Accepted Answer

The four-chambered heart of a teleost fi

Question 15

Explain why some fish die if they are prevented from continuously swimming forward.

Accepted Answer

Some fish species, such as many sharks a

Question 16

The class ____________ is composed of vertebrates having placoid scales,a heterocercal caudal fin,a ventral mouth,and a cartilaginous endoskeleton.

Accepted Answer

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

Question 17

The Teleostomi fishes consist of what three major groups

Accepted Answer

A)  Acanthodii, actinopterygii, and sarcopterygii 
B)  Chondricthyes, agnatha, and myxini 
C)  Myxini, placoderms, and holocephali 
D)  Agnatha, craniata, and osteichthyes 
E)  None of the choices are correct 
A)  Acanthodii, actinopterygii, and sarcopterygii 
B)  Chondricthyes, agnatha, and myxini 
C)  Myxini, placoderms, and holocephali 
D)  Agnatha, craniata, and osteichthyes 
E)  None of the choices are correct

Question 18

In schooling,fish rely on sensitivity to vibration and water currents.This is provided by cells called neuromasts located inside

Accepted Answer

A)  caudal fin. 
B)  gills. 
C)  swim bladder. 
D)  lateral-line. 
E)  placoid scales. 
A)  caudal fin. 
B)  gills. 
C)  swim bladder. 
D)  lateral-line. 
E)  placoid scales.

Question 19

The lateral-line of a shark is used for

Accepted Answer

A)  Detecting and locating objects and moving animals in the water. 
B)  Excretion of urea and water. 
C)  Detecting odors. 
D)  Secreting mucus as a swimming lubricant. 
E)  Detecting the heat of prey animals. 
A)  Detecting and locating objects and moving animals in the water. 
B)  Excretion of urea and water. 
C)  Detecting odors. 
D)  Secreting mucus as a swimming lubricant. 
E)  Detecting the heat of prey animals.

Question 20

A representative of the ray-finned fish group,the chondrosteans,is the

Accepted Answer

A)  gar. 
B)  sturgeon. 
C)  coelacanth. 
D)  bowfin. 
E)  carp. 
A)  gar. 
B)  sturgeon. 
C)  coelacanth. 
D)  bowfin. 
E)  carp.

Exam 24: Fishes

Cartilaginous fishes

The gas gland of the teleost swim bladder contains a remarkable network of blood capillaries called the ___________ _____________.

Teleost fishes have a type of tail that is called a __________ tail.

Discuss the vascularization of the gills of fish.Is this homologous or analogous to the vascularization of mammalian lungs?

Shark reproduction and development involves

The most diverse fish group is the

How is gas moved into and out of the teleost swim bladder? Describe the physiological process in detail.

The spiral valve in the intestine of a shark serves to

The hagfish has a keen sense of

Describe the life cycle of the eel.Contrast this migration with the Pacific salmon.

Ampullary organs of Lorenzini

Explain why there are relics of the transformation of Meckel's cartilage during the development of modern sharks.

The ovoviviparous sharks are those that

Technically a teleost fish has a four-chambered heart.Yet this is not the same as the four-chambered heart of a bird or mammal.Compare and contrast these two "four chambered" hearts.

Explain why some fish die if they are prevented from continuously swimming forward.

The class ____________ is composed of vertebrates having placoid scales,a heterocercal caudal fin,a ventral mouth,and a cartilaginous endoskeleton.

The Teleostomi fishes consist of what three major groups

In schooling,fish rely on sensitivity to vibration and water currents.This is provided by cells called neuromasts located inside

The lateral-line of a shark is used for

A representative of the ray-finned fish group,the chondrosteans,is the

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The gas gland of the teleost swim bladder contains a remarkable network of blood capillaries called the _ ___.