Question 1

refer to the figure above to answer the following question
-The letter "D" in the accompanying figure represents the ____.

Accepted Answer

A)  ​humerus 
B)  ​pectoral girdle 
C)  ​skull 
D)  ​sternum 
E)  ​pelvic girdle 
A)  ​humerus 
B)  ​pectoral girdle 
C)  ​skull 
D)  ​sternum 
E)  ​pelvic girdle C

Question 2

Select the best choice for the following statements in reference to the classes listed below.​
-Members of this class have cartilaginous skeletons but also possess jaws.

Accepted Answer

A) ​cartilaginous fishes 
B) ​bony fishes 
C) ​amphibians 
D) ​reptilians 
A) ​cartilaginous fishes 
B) ​bony fishes 
C) ​amphibians 
D) ​reptilians A

Question 3

A(n) __________ is an organ that allows exchange of nutrients between an embryo and its mother.

Accepted Answer

​placenta

Question 4

Choose the one most appropriate letter for each.
-lancelets

Accepted Answer

A) ​cartilaginous skeleton; jaws 
B) ​reptile with four-chambered heart 
C) ​placental mammal 
D) ​legless amphibian 
E) ​invertebrate chordate; no metamorphosis
F)​endotherm with feathers
G)​limbless reptile
H)​most primitive fishes with jaws; extinct
I)​modern-day parasitic jawless vertebrate
J)​marsupial
K)​adult is called "sea squirt"
L)​egg-laying mammal
M)​swim bladder for buoyancy
N)​may be sexually mature in larval form 
A) ​cartilaginous skeleton; jaws 
B) ​reptile with four-chambered heart 
C) ​placental mammal 
D) ​legless amphibian 
E) ​invertebrate chordate; no metamorphosis
F)​endotherm with feathers
G)​limbless reptile
H)​most primitive fishes with jaws; extinct
I)​modern-day parasitic jawless vertebrate
J)​marsupial
K)​adult is called "sea squirt"
L)​egg-laying mammal
M)​swim bladder for buoyancy
N)​may be sexually mature in larval form

Question 5

Birds differ from earlier vertebrates by ____.

Accepted Answer

A)  ​the presence of feathers 
B)  ​producing land eggs 
C)  ​the ability to maintain a constant body temperature through metabolic activities 
D)  ​the ability to fertilize eggs internally 
E)  ​their possession of a dorsal nerve cord 
A)  ​the presence of feathers 
B)  ​producing land eggs 
C)  ​the ability to maintain a constant body temperature through metabolic activities 
D)  ​the ability to fertilize eggs internally 
E)  ​their possession of a dorsal nerve cord

Question 6

Reptiles are __________ (cold-blooded animals) with scales.

Accepted Answer

The answer of Reptiles are __________ (cold-blooded animals) with scales....

Question 7

refer to the figure above to answer the following question
-The letter "A" in the accompanying figure represents the ____.

Accepted Answer

A)  ​humerus 
B)  ​pectoral girdle 
C)  ​skull 
D)  ​sternum 
E)  ​pelvic girdle 
A)  ​humerus 
B)  ​pectoral girdle 
C)  ​skull 
D)  ​sternum 
E)  ​pelvic girdle

Question 8

Choose the one most appropriate letter for each.
-salamanders

Accepted Answer

A) ​cartilaginous skeleton; jaws 
B) ​reptile with four-chambered heart 
C) ​placental mammal 
D) ​legless amphibian 
E) ​invertebrate chordate; no metamorphosis
F)​endotherm with feathers
G)​limbless reptile
H)​most primitive fishes with jaws; extinct
I)​modern-day parasitic jawless vertebrate
J)​marsupial
K)​adult is called "sea squirt"
L)​egg-laying mammal
M)​swim bladder for buoyancy
N)​may be sexually mature in larval form 
A) ​cartilaginous skeleton; jaws 
B) ​reptile with four-chambered heart 
C) ​placental mammal 
D) ​legless amphibian 
E) ​invertebrate chordate; no metamorphosis
F)​endotherm with feathers
G)​limbless reptile
H)​most primitive fishes with jaws; extinct
I)​modern-day parasitic jawless vertebrate
J)​marsupial
K)​adult is called "sea squirt"
L)​egg-laying mammal
M)​swim bladder for buoyancy
N)​may be sexually mature in larval form

Question 9

__________, the first group of vertebrates able to complete their life cycle on dry land, have water conserving skin and kidneys, and amniote eggs.

Accepted Answer

The answer of __________, the first group of vertebrates able...

Question 10

Select the best choice for the following statements in reference to the classes listed below.​
-Members of this class are fully terrestrial except for reproduction.

Accepted Answer

A) ​cartilaginous fishes 
B) ​bony fishes 
C) ​amphibians 
D) ​reptilians 
A) ​cartilaginous fishes 
B) ​bony fishes 
C) ​amphibians 
D) ​reptilians

Question 11

Choose the one most appropriate letter for each.
-bony fishes

Accepted Answer

A) ​cartilaginous skeleton; jaws 
B) ​reptile with four-chambered heart 
C) ​placental mammal 
D) ​legless amphibian 
E) ​invertebrate chordate; no metamorphosis
F)​endotherm with feathers
G)​limbless reptile
H)​most primitive fishes with jaws; extinct
I)​modern-day parasitic jawless vertebrate
J)​marsupial
K)​adult is called "sea squirt"
L)​egg-laying mammal
M)​swim bladder for buoyancy
N)​may be sexually mature in larval form 
A) ​cartilaginous skeleton; jaws 
B) ​reptile with four-chambered heart 
C) ​placental mammal 
D) ​legless amphibian 
E) ​invertebrate chordate; no metamorphosis
F)​endotherm with feathers
G)​limbless reptile
H)​most primitive fishes with jaws; extinct
I)​modern-day parasitic jawless vertebrate
J)​marsupial
K)​adult is called "sea squirt"
L)​egg-laying mammal
M)​swim bladder for buoyancy
N)​may be sexually mature in larval form

Question 12

Egg-laying mammals ____.

Accepted Answer

A)  ​hatch fully developed young from their eggs 
B)  ​are monotremes 
C)  ​are hairless 
D)  ​are confined to South America 
E)  ​bear their young into permanent pouches 
A)  ​hatch fully developed young from their eggs 
B)  ​are monotremes 
C)  ​are hairless 
D)  ​are confined to South America 
E)  ​bear their young into permanent pouches

Question 13

Choose the one most appropriate letter for each.
-tunicates

Accepted Answer

A) ​cartilaginous skeleton; jaws 
B) ​reptile with four-chambered heart 
C) ​placental mammal 
D) ​legless amphibian 
E) ​invertebrate chordate; no metamorphosis
F)​endotherm with feathers
G)​limbless reptile
H)​most primitive fishes with jaws; extinct
I)​modern-day parasitic jawless vertebrate
J)​marsupial
K)​adult is called "sea squirt"
L)​egg-laying mammal
M)​swim bladder for buoyancy
N)​may be sexually mature in larval form 
A) ​cartilaginous skeleton; jaws 
B) ​reptile with four-chambered heart 
C) ​placental mammal 
D) ​legless amphibian 
E) ​invertebrate chordate; no metamorphosis
F)​endotherm with feathers
G)​limbless reptile
H)​most primitive fishes with jaws; extinct
I)​modern-day parasitic jawless vertebrate
J)​marsupial
K)​adult is called "sea squirt"
L)​egg-laying mammal
M)​swim bladder for buoyancy
N)​may be sexually mature in larval form

Question 14

Figure 25.2
   
Use the illustration above to answer the question
-Consider the accompanying figure. Four of the following are true statements about the structure indicated by "D." Which statement is false?

Accepted Answer

A)  ​It first evolved in arthropods. 
B)  ​It extends anteriorly into the head region. 
C)  ​It provides support for muscle contraction. 
D)  ​It is replaced in most adult vertebrates by the vertebral column. 
E)  ​It is one of the four exclusive features of chordates. 
A)  ​It first evolved in arthropods. 
B)  ​It extends anteriorly into the head region. 
C)  ​It provides support for muscle contraction. 
D)  ​It is replaced in most adult vertebrates by the vertebral column. 
E)  ​It is one of the four exclusive features of chordates.

Question 15

Four of the following are members of the bony fishes. Which one is the exception?​

Accepted Answer

A)  ​teleosts 
B)  ​ray-finned fish 
C)  ​lungfish 
D)  ​stingrays 
E)  ​lobe-finned fishes 
A)  ​teleosts 
B)  ​ray-finned fish 
C)  ​lungfish 
D)  ​stingrays 
E)  ​lobe-finned fishes

Question 16

Four of the following statements about crocodilians are true. Which statement is false?​

Accepted Answer

A)  ​They live in or near water. 
B)  ​They are predators with sharp teeth. 
C)  ​They have a two-chambered heart. 
D)  ​They have powerful jaws. 
E)  ​They are the closest living relatives to birds. 
A)  ​They live in or near water. 
B)  ​They are predators with sharp teeth. 
C)  ​They have a two-chambered heart. 
D)  ​They have powerful jaws. 
E)  ​They are the closest living relatives to birds.

Question 17

Four of the following are extraembryonic membranes of the amniote egg. Which one is the exception?

Accepted Answer

A)  albumen​ 
B)  ​amnion 
C)  ​chorion 
D)  ​allantois 
E)  ​yolk sac 
A)  albumen​ 
B)  ​amnion 
C)  ​chorion 
D)  ​allantois 
E)  ​yolk sac

Question 18

Sharks differ from most other fish in that they lack ____.

Accepted Answer

A)  ​gill slits 
B)  ​scales 
C)  ​bone 
D)  ​paired appendages 
E)  ​teeth 
A)  ​gill slits 
B)  ​scales 
C)  ​bone 
D)  ​paired appendages 
E)  ​teeth

Question 19

Select the best choice for the following statements in reference to the classes listed below.​
-Members of one unusual group may have been ancestors of tetrapods.

Accepted Answer

A) ​cartilaginous fishes 
B) ​bony fishes 
C) ​amphibians 
D) ​reptilians 
A) ​cartilaginous fishes 
B) ​bony fishes 
C) ​amphibians 
D) ​reptilians

Question 20

Figure 25.2
   
Use the illustration above to answer the question
-In the accompanying figure, which structure is a rod of stiffened support tissue?​

Accepted Answer

A)  ​A 
B)  ​B 
C)  ​C 
D)  ​D 
E)  ​E 
A)  ​A 
B)  ​B 
C)  ​C 
D)  ​D 
E)  ​E

Exam 25: Animal Evolution - the Chordates

refer to the figure above to answer the following question -The letter "D" in the accompanying figure represents the ____.

Select the best choice for the following statements in reference to the classes listed below.​ -Members of this class have cartilaginous skeletons but also possess jaws.

A(n) __________ is an organ that allows exchange of nutrients between an embryo and its mother.

Choose the one most appropriate letter for each. -lancelets

Birds differ from earlier vertebrates by ____.

Reptiles are __________ (cold-blooded animals) with scales.

refer to the figure above to answer the following question -The letter "A" in the accompanying figure represents the ____.

Choose the one most appropriate letter for each. -salamanders

__________, the first group of vertebrates able to complete their life cycle on dry land, have water conserving skin and kidneys, and amniote eggs.

Select the best choice for the following statements in reference to the classes listed below.​ -Members of this class are fully terrestrial except for reproduction.

Choose the one most appropriate letter for each. -bony fishes

Egg-laying mammals ____.

Choose the one most appropriate letter for each. -tunicates

Figure 25.2 Use the illustration above to answer the question -Consider the accompanying figure. Four of the following are true statements about the structure indicated by "D." Which statement is false?

Four of the following are members of the bony fishes. Which one is the exception?​

Four of the following statements about crocodilians are true. Which statement is false?​

Four of the following are extraembryonic membranes of the amniote egg. Which one is the exception?

Sharks differ from most other fish in that they lack ____.

Select the best choice for the following statements in reference to the classes listed below.​ -Members of one unusual group may have been ancestors of tetrapods.

Figure 25.2 Use the illustration above to answer the question -In the accompanying figure, which structure is a rod of stiffened support tissue?​

Invitation to Biology

Lifes Chemical Basis

Molecules of Life

Cell Structure and Function

Ground Rules of Metabolism

Where It Starts - Photosynthesis

How Cells Release Chemical Energy

Dna Structure and Function

From Dna to Protein

Gene Control

How Cells Reproduce

Meiosis and Sexual Reproduction

Observing Patterns in Inherited Traits

Chromosomes and Human Inheritance

Studying and Manipulating Genomes

Evidence of Evolution

Processes of Evolution

Organizating Information About Species

Lifes Origin and Early Evolution

Viruses - Bacteria - and Archaea

Protists - the Simplest Eukaryotes

The Land Plants

Fungi

Animal Evolution - the Invertibrates

Human Evolution

Plant Tissues

Plant Nutrition and Transport

Life Cycles of Flowering Plants

Communication Strategies in Plants

Animal Tissues

Neural Control

Sensory Perception

Endocrine Control

Structural Support and Movement

Circulation

Immunity

Respiration

Digestion and Nutrition

Maintaining the Internal Environment

Animal Reproductive Systems

Animal Development

Animal Behavior

Filters

Select the best choice for the following statements in reference to the classes listed below. -Members of this class have cartilaginous skeletons but also possess jaws.

Select the best choice for the following statements in reference to the classes listed below. -Members of this class are fully terrestrial except for reproduction.

Four of the following are members of the bony fishes. Which one is the exception?

Four of the following statements about crocodilians are true. Which statement is false?

Select the best choice for the following statements in reference to the classes listed below. -Members of one unusual group may have been ancestors of tetrapods.

Figure 25.2 Use the illustration above to answer the question -In the accompanying figure, which structure is a rod of stiffened support tissue?