Question 1

Which group of mammals exhibits the widest distribution and greatest diversity?​

Accepted Answer

A)  ​marsupials 
B)  ​cetaceans 
C)  ​placentals 
D)  ​primates 
E)  monotremes 
A)  ​marsupials 
B)  ​cetaceans 
C)  ​placentals 
D)  ​primates 
E)  monotremes

Question 2

A great adaptive radiation of mammals began about ____ million years ago.

Accepted Answer

A)  25​ 
B)  ​65 
C)  ​95 
D)  ​125 
E)  ​165 
A)  25​ 
B)  ​65 
C)  ​95 
D)  ​125 
E)  ​165

Question 3

Four of the following are trends associated with vertebrate evolution. Which one is the exception?​

Accepted Answer

A)  ​conversion of the support for locomotion from the notochord to the vertebral column 
B)  ​expansion of the nerve cord to form the brain and spinal cord 
C)  ​changes in the respiratory system from gills to lungs with accompanying changes in the circulatory system 
D)  ​the development of fewer, more efficient chambers in the heart 
E)  ​modification of limbs that allowed for more efficient movement 
A)  ​conversion of the support for locomotion from the notochord to the vertebral column 
B)  ​expansion of the nerve cord to form the brain and spinal cord 
C)  ​changes in the respiratory system from gills to lungs with accompanying changes in the circulatory system 
D)  ​the development of fewer, more efficient chambers in the heart 
E)  ​modification of limbs that allowed for more efficient movement

Question 4

Birds are evolved from reptiles, but also differ dramatically. Which features of birds differentiate them from most reptiles?

Accepted Answer

​Birds have large eyes, compar

Question 5

Choose the one most appropriate letter for each.
-opossum

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 6

The first group to exhibit an amniotic egg was the ____.

Accepted Answer

A)  birds 
B)  ​mmphibians 
C)  ​reptiles 
D)  ​bony fish 
E)  ​mammals 
A)  birds 
B)  ​mmphibians 
C)  ​reptiles 
D)  ​bony fish 
E)  ​mammals

Question 7

The feeding habits of lampreys are best described as ____.

Accepted Answer

A)  ​suspension feeding 
B)  ​predatory 
C)  ​parasitic 
D)  ​scavenging 
E)  ​filter feeding 
A)  ​suspension feeding 
B)  ​predatory 
C)  ​parasitic 
D)  ​scavenging 
E)  ​filter feeding

Question 8

Choose the one most appropriate letter for each.
-sharks

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

One hypothesis proposes that an asteroid impact at the end of the ___________ led to the extinction of dinosaurs.

Accepted Answer

The answer of One hypothesis proposes that an asteroid impact...

Question 10

-Which trait does the fossil in the accompanying figure share with modern birds?​

Accepted Answer

A)  ​long, clawed fingers on each forelimb 
B)  ​teeth 
C)  ​Feathers 
D)  ​long bony tail 
E)  ​heavy jaw 
A)  ​long, clawed fingers on each forelimb 
B)  ​teeth 
C)  ​Feathers 
D)  ​long bony tail 
E)  ​heavy jaw

Question 11

Jaws and paired fins evolved in early __________.

Accepted Answer

The answer of Jaws and paired fins evolved in early...

Exam 25: Animal Evolution - the Chordates

Which group of mammals exhibits the widest distribution and greatest diversity?​

A great adaptive radiation of mammals began about ____ million years ago.

Four of the following are trends associated with vertebrate evolution. Which one is the exception?​

Birds are evolved from reptiles, but also differ dramatically. Which features of birds differentiate them from most reptiles?

Choose the one most appropriate letter for each. -opossum

The first group to exhibit an amniotic egg was the ____.

The feeding habits of lampreys are best described as ____.

Choose the one most appropriate letter for each. -sharks

One hypothesis proposes that an asteroid impact at the end of the ___________ led to the extinction of dinosaurs.

-Which trait does the fossil in the accompanying figure share with modern birds?​

Jaws and paired fins evolved in early __________.

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

Which group of mammals exhibits the widest distribution and greatest diversity?

Four of the following are trends associated with vertebrate evolution. Which one is the exception?

-Which trait does the fossil in the accompanying figure share with modern birds?