Question 1

The evolutionary contribution of amphibians to life on land was the development of

Accepted Answer

A)  the amniotic egg and shell. 
B)  lungs and limbs. 
C)  a watertight skin. 
D)  a life cycle independent of a need for water to breed. 
E)  All of the choices are amphibian "innovations". 
A)  the amniotic egg and shell. 
B)  lungs and limbs. 
C)  a watertight skin. 
D)  a life cycle independent of a need for water to breed. 
E)  All of the choices are amphibian "innovations". B

Question 2

Which is true regarding the oxygen content of air?

Accepted Answer

A)  It is less than the oxygen dissolved in an equal volume of water. 
B)  It is equal to the oxygen content of an equal volume of water at the same pressure. 
C)  It is 20 times greater than in an equal volume of water. 
D)  It is irrelevant to the animal lung since it must still diffuse across the wet surface of membranes. 
E)  It is approximately 1000 times greater than in an equal volume of water. 
A)  It is less than the oxygen dissolved in an equal volume of water. 
B)  It is equal to the oxygen content of an equal volume of water at the same pressure. 
C)  It is 20 times greater than in an equal volume of water. 
D)  It is irrelevant to the animal lung since it must still diffuse across the wet surface of membranes. 
E)  It is approximately 1000 times greater than in an equal volume of water. C

Question 3

Some salamanders retain larval features (e.g.,gills)throughout life,a condition called __________.

Accepted Answer

paedomorphosis

Question 4

Compare and contrast the sensory systems of bony fish with those of adult anurans.

Accepted Answer

Bony fish and adult anurans (frogs and t

Question 5

The Urodela

Accepted Answer

A)  are hermaphroditic. 
B)  are tadpoles when young. 
C)  retain their tail permanently. 
D)  live only in the tropics. 
E)  never have to return to water to breed. 
A)  are hermaphroditic. 
B)  are tadpoles when young. 
C)  retain their tail permanently. 
D)  live only in the tropics. 
E)  never have to return to water to breed.

Question 6

What are the limitations of the amphibian skin? How do these limitations prevent them from inhabiting certain habitats?

Accepted Answer

The amphibian skin has several limitatio

Question 7

Discuss the transition from an aquatic environment to a terrestrial environment.What are the structural and physiological features required for such a move?

Accepted Answer

The transition from an aquatic environme

Question 8

Discuss the contributions of Ichthyostega,Eustenopteron,Acanthostega,and Limnoscelis in the evolution of tetrapods.

Accepted Answer

Ichthyostega, Eustenopteron, Acanthosteg

Question 9

Frog skin color is produced by cells called ________.

Accepted Answer

The answer of Frog skin color is produced by cells...

Question 10

The lungs of a frog are supplied by the ______ _____,vessels derived from the sixth aortic arches.

Accepted Answer

The answer of The lungs of a frog are supplied...

Question 11

Frogs breathe using

Accepted Answer

A)  negative pressure, similar to reptiles and mammals. 
B)  various absorptive surfaces but with no pneumatic system to ventilate those surfaces. 
C)  positive pressure breathing during which air is forced into the balloon-like lungs. 
D)  a bird-like circular air circulation. 
E)  gill modifications. 
A)  negative pressure, similar to reptiles and mammals. 
B)  various absorptive surfaces but with no pneumatic system to ventilate those surfaces. 
C)  positive pressure breathing during which air is forced into the balloon-like lungs. 
D)  a bird-like circular air circulation. 
E)  gill modifications.

Question 12

What is the process called in which the male frog grasps a female,in order to be present for external fertilization,called?

Accepted Answer

A)  Amplexus 
B)  Neoteny 
C)  Coitus 
D)  Copulation 
E)  Paedomorphosis 
A)  Amplexus 
B)  Neoteny 
C)  Coitus 
D)  Copulation 
E)  Paedomorphosis

Question 13

The Anura differ from the Urodela because the Anura

Accepted Answer

A)  lack a tail in the adult stage. 
B)  have hind legs adapted for jumping. 
C)  have a tadpole larval stage. 
D)  have mostly herbivorous young. 
E)  All of the choices are correct. 
A)  lack a tail in the adult stage. 
B)  have hind legs adapted for jumping. 
C)  have a tadpole larval stage. 
D)  have mostly herbivorous young. 
E)  All of the choices are correct.

Question 14

If you used an aquarium to raise most tadpoles,what should you feed them?

Accepted Answer

A)  Algae 
B)  Small insects 
C)  Decaying debris on bottom of pond 
D)  Fish blood 
E)  Small chunks of meat 
A)  Algae 
B)  Small insects 
C)  Decaying debris on bottom of pond 
D)  Fish blood 
E)  Small chunks of meat

Question 15

Salamanders and newts are in the order __________.
or
Caudata

Accepted Answer

The answer of Salamanders and newts are in the order...

Question 16

The __________ is a gilled adult of the Ambystoma genus found in Mexico and the southwestern United States. In dry conditions it may metamorphose to an air-breathing adult.

Accepted Answer

A)  Axolotl 
B)  Amphioxus 
C)  Coelacanth 
D)  Lungless salamander 
E)  Mudskipper 
A)  Axolotl 
B)  Amphioxus 
C)  Coelacanth 
D)  Lungless salamander 
E)  Mudskipper

Question 17

It grows legs and loses a tail.It changes from an herbivore with a long digestive tract to a carnivore with a shorter one.It loses its gills and lateral line system and uses its skin,mouth,and lungs for gas exchange.What is it?

Accepted Answer

A)  Lancelet 
B)  Sea squirt larva 
C)  Lung-fish 
D)  Tadpole 
E)  Primitive reptile 
A)  Lancelet 
B)  Sea squirt larva 
C)  Lung-fish 
D)  Tadpole 
E)  Primitive reptile

Question 18

Frogs and toads belong to the order _________,a name that means "without a tail."

Accepted Answer

The answer of Frogs and toads belong to the order...

Question 19

A frog skeleton

Accepted Answer

A)  has a vertebral column consisting of only nine vertebrae and a urostyle. 
B)  has a highly flexible vertebral column, an adaptation for transmitting force from the hindlimbs of the body. 
C)  is, like that of crossopterygian, entirely cartilaginous. 
D)  bears limbs with four digits on each hand and foot. 
E)  All of these choices are correct. 
A)  has a vertebral column consisting of only nine vertebrae and a urostyle. 
B)  has a highly flexible vertebral column, an adaptation for transmitting force from the hindlimbs of the body. 
C)  is, like that of crossopterygian, entirely cartilaginous. 
D)  bears limbs with four digits on each hand and foot. 
E)  All of these choices are correct.

Question 20

The term "tetrapods"

Accepted Answer

A)  refers to the organisms that form the superclass Tetrapoda. 
B)  includes the amphibians and amniotes. 
C)  does not include the fish. 
D)  includes humans. 
E)  All of these choices are correct. 
A)  refers to the organisms that form the superclass Tetrapoda. 
B)  includes the amphibians and amniotes. 
C)  does not include the fish. 
D)  includes humans. 
E)  All of these choices are correct.

Exam 25: Early Tetrapods and Modern Amphibians

The evolutionary contribution of amphibians to life on land was the development of

Which is true regarding the oxygen content of air?

Some salamanders retain larval features (e.g.,gills)throughout life,a condition called __________.

Compare and contrast the sensory systems of bony fish with those of adult anurans.

The Urodela

What are the limitations of the amphibian skin? How do these limitations prevent them from inhabiting certain habitats?

Discuss the transition from an aquatic environment to a terrestrial environment.What are the structural and physiological features required for such a move?

Discuss the contributions of Ichthyostega,Eustenopteron,Acanthostega,and Limnoscelis in the evolution of tetrapods.

Frog skin color is produced by cells called ________.

The lungs of a frog are supplied by the ______ _____,vessels derived from the sixth aortic arches.

Frogs breathe using

What is the process called in which the male frog grasps a female,in order to be present for external fertilization,called?

The Anura differ from the Urodela because the Anura

If you used an aquarium to raise most tadpoles,what should you feed them?

Salamanders and newts are in the order __________. or Caudata

The __________ is a gilled adult of the Ambystoma genus found in Mexico and the southwestern United States. In dry conditions it may metamorphose to an air-breathing adult.

It grows legs and loses a tail.It changes from an herbivore with a long digestive tract to a carnivore with a shorter one.It loses its gills and lateral line system and uses its skin,mouth,and lungs for gas exchange.What is it?

Frogs and toads belong to the order _________,a name that means "without a tail."

A frog skeleton

The term "tetrapods"

Life: Biological Principles and the Science of Zoology

The Origin and Chemistry of Life

Cells As Units of Life

Cellular Metabolism

Genetics: a Review

Organic Evolution

The Reproductive Process

Principles of Development

Architectural Pattern of an Animal

Taxonomy and Phylogeny of Animals

Unicellular Eukaryotes

Sponges and Placozoans

Radiate Animals

Acoelomorpha,Platyzoa,and Mesozoa

Polyzoa and Kryptrochozoa

Molluscs

Annelids and Allied Taxa

Smaller Ecdysozoans

Trilobites, Chelicerates, and Myriapods

Crustaceans

Support, Protection, and Movement

Chaetognaths, Echinoderms, and Hemichordates

Chordates

Fishes

Amniote Origins and Nonavian Reptiles

Birds

Mammals

Support, protection, and Movement

Homeostasis: Osmotic Regulation, Excretion, and Temperature Regulation

Homeostasis: Internal Fluids and Respiration

Digestion and Nutrition

Nervous Coordination: Nervous System and Sense Organs

Chemical Coordination: Endocrine System

Immunity

Animal Behavior

Animal Distributions

Animal Ecology

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The lungs of a frog are supplied by the __ _,vessels derived from the sixth aortic arches.