Question 1

Which of the following groups had made their appearance during the Ordovician period?

Accepted Answer

A) Jawless and jawed fish. 
B) Jawed fish and amphibians. 
C) Amphibians and reptiles. 
D) Reptiles and mammals. 
E) All of these groups had appeared by the Ordovician period. 
A) Jawless and jawed fish. 
B) Jawed fish and amphibians. 
C) Amphibians and reptiles. 
D) Reptiles and mammals. 
E) All of these groups had appeared by the Ordovician period. A

Question 2

Which of the following features are shared by all of the jawed fish?

Accepted Answer

A) Endothermic,gills and scales. 
B) Ectothermic,smooth nonscaly skin and bony skeleton. 
C) Cartilaginous endoskeleton,gills and scales. 
D) Bony endoskeleton,gills and scales. 
A) Endothermic,gills and scales. 
B) Ectothermic,smooth nonscaly skin and bony skeleton. 
C) Cartilaginous endoskeleton,gills and scales. 
D) Bony endoskeleton,gills and scales. C

Question 3

The following are differences between amphibians and reptiles EXCEPT

Accepted Answer

A) amphibians have smooth non-scaly skin,whereas reptiles are covered with scales and their skin is dry. 
B) all reptiles respire by the use of lungs,while amphibians use small lungs supplemented by cutaneous respiration. 
C) amphibian eggs are laid in water,but reptiles do not require water for reproduction. 
D) reptiles are ectothermic,while amphibians are endothermic. 
A) amphibians have smooth non-scaly skin,whereas reptiles are covered with scales and their skin is dry. 
B) all reptiles respire by the use of lungs,while amphibians use small lungs supplemented by cutaneous respiration. 
C) amphibian eggs are laid in water,but reptiles do not require water for reproduction. 
D) reptiles are ectothermic,while amphibians are endothermic. D

Question 4

Which of the following groups are considered chordates but are lacking the vertebral column trait?

Accepted Answer

A) osteichthyes & urochordata 
B) urochordata & cephalochordates 
C) cephalochordates & chondrichthyes 
D) sea squirts & chondrichthyes 
A) osteichthyes & urochordata 
B) urochordata & cephalochordates 
C) cephalochordates & chondrichthyes 
D) sea squirts & chondrichthyes

Question 5

Mammals are different from birds in all these characteristics EXCEPT

Accepted Answer

A) hair. 
B) mammary glands. 
C) constant body temperature. 
D) young born alive. 
A) hair. 
B) mammary glands. 
C) constant body temperature. 
D) young born alive.

Question 6

It was during the ______ period within the ______era that chordates made their first appearance.

Accepted Answer

A) Cambrian,Paleozoic 
B) Ordovician,Paleozoic 
C) Mesozoic,Cretaceous 
D) Paleozoic,Cambrian 
A) Cambrian,Paleozoic 
B) Ordovician,Paleozoic 
C) Mesozoic,Cretaceous 
D) Paleozoic,Cambrian

Question 7

Amphibians were the dominant animal life during the ________ period.

Accepted Answer

A) Jurassic 
B) Carboniferous 
C) Devonian 
D) Silurian 
E) Cambrian 
A) Jurassic 
B) Carboniferous 
C) Devonian 
D) Silurian 
E) Cambrian

Question 8

Which of the following statements best describes the jawless fishes?

Accepted Answer

A) Ectotherms that have a bony skeleton. 
B) Ectotherms that have a smooth nonscaly skin. 
C) Endotherms that have a smooth nonscaly skin. 
D) Vertebrates that have scales and are ectothermic. 
A) Ectotherms that have a bony skeleton. 
B) Ectotherms that have a smooth nonscaly skin. 
C) Endotherms that have a smooth nonscaly skin. 
D) Vertebrates that have scales and are ectothermic.

Question 9

Which of the following groups of chordates would be most impacted by a decrease in the phytoplankton levels in the ocean?

Accepted Answer

A) cephalochordates & urochordates 
B) cartilaginous fish & cephalochordates 
C) amphibians & urochodrates 
D) molluscs & cephalochordates 
A) cephalochordates & urochordates 
B) cartilaginous fish & cephalochordates 
C) amphibians & urochodrates 
D) molluscs & cephalochordates

Question 10

The jawed fish and all other vertebrates are gnathostomes,which means they have

Accepted Answer

A) segmentation. 
B) jaws. 
C) a notochord that develops into a vertebral column. 
D) amniotic eggs. 
E) exoskeletons 
A) segmentation. 
B) jaws. 
C) a notochord that develops into a vertebral column. 
D) amniotic eggs. 
E) exoskeletons

Question 11

Which of these characteristics first developed in reptiles?

Accepted Answer

A) amniotic egg 
B) scales on skin 
C) four-legged body 
D) skull and vertebral column 
E) animals living completely on land 
A) amniotic egg 
B) scales on skin 
C) four-legged body 
D) skull and vertebral column 
E) animals living completely on land

Question 12

The position of mammals in evolution is best described as

Accepted Answer

A) they dominate life in the sea. 
B) they were among the first animals to live on land and their diversity is greater than all living things known. 
C) they arose from mammal-like reptiles in the Jurassic but remained small and insignificant while dinosaurs dominated the land. 
D) mammals gave rise to birds. 
E) All of the choices are correct. 
A) they dominate life in the sea. 
B) they were among the first animals to live on land and their diversity is greater than all living things known. 
C) they arose from mammal-like reptiles in the Jurassic but remained small and insignificant while dinosaurs dominated the land. 
D) mammals gave rise to birds. 
E) All of the choices are correct.

Question 13

______ were the first vertebrates to live on land and they evolved from _____.

Accepted Answer

A) Amphibians; fish 
B) Reptiles; amphibians 
C) Mammals; reptiles 
D) Amphibians; lancelets 
A) Amphibians; fish 
B) Reptiles; amphibians 
C) Mammals; reptiles 
D) Amphibians; lancelets

Question 14

Predacious meat eaters with large and conical-shaped canines are

Accepted Answer

A) cetaceans. 
B) chiroptera. 
C) carnivores. 
D) proboscidea. 
A) cetaceans. 
B) chiroptera. 
C) carnivores. 
D) proboscidea.

Question 15

The mammalian lineages include

Accepted Answer

A) placental mammals. 
B) marsupials. 
C) monotremes. 
D) All of the above are correct. 
E) None of the above are correct. 
A) placental mammals. 
B) marsupials. 
C) monotremes. 
D) All of the above are correct. 
E) None of the above are correct.

Question 16

Which of the following reptilian features enabled them to adapt to a terrestrial environment?

Accepted Answer

A) A dry skin,ectothermy and external fertilization 
B) Two pairs of paired limbs,a septum that divides the ventricle,and well developed kidneys 
C) Skin that allows for respiration,a septum that divides the ventricle and an amniotic egg 
D) Efficient respiration,ectothermy and external fertilization 
E) Live birth,efficient excretion and two pairs of limbs 
A) A dry skin,ectothermy and external fertilization 
B) Two pairs of paired limbs,a septum that divides the ventricle,and well developed kidneys 
C) Skin that allows for respiration,a septum that divides the ventricle and an amniotic egg 
D) Efficient respiration,ectothermy and external fertilization 
E) Live birth,efficient excretion and two pairs of limbs

Question 17

During the course of fish evolution two of the gill slits slowly evolved into ____________.

Accepted Answer

A) gills 
B) the pectoral fins 
C) the swim bladder 
D) the jaw 
E) none of the above 
A) gills 
B) the pectoral fins 
C) the swim bladder 
D) the jaw 
E) none of the above

Question 18

All chordates are also vertebrates.

Accepted Answer

A) True 
 B)False

Question 19

The four defining characteristics of chordates are

Accepted Answer

A) segmentation,a dorsal hollow nerve cord,pharyngeal pouches,and an amniotic egg. 
B) a dorsal hollow nerve cord,a notochord,bilateral symmetry,and mammary glands. 
C) bilateral symmetry,segmentation,a well-developed coelom,and limbs. 
D) a well-developed coelom,pharyngeal pouches,a notochord,and jaws. 
E) pharyngeal pouches,a dorsal nerve cord,a notochord,and a postanal tail. 
A) segmentation,a dorsal hollow nerve cord,pharyngeal pouches,and an amniotic egg. 
B) a dorsal hollow nerve cord,a notochord,bilateral symmetry,and mammary glands. 
C) bilateral symmetry,segmentation,a well-developed coelom,and limbs. 
D) a well-developed coelom,pharyngeal pouches,a notochord,and jaws. 
E) pharyngeal pouches,a dorsal nerve cord,a notochord,and a postanal tail.

Question 20

The duckbill platypus is different than most mammals because it

Accepted Answer

A) lacks hair. 
B) is "cold-blooded." 
C) doesn't secrete milk. 
D) doesn't give birth,but lays eggs. 
E) All of the choices are correct. 
A) lacks hair. 
B) is "cold-blooded." 
C) doesn't secrete milk. 
D) doesn't give birth,but lays eggs. 
E) All of the choices are correct.

Exam 29: Vertebrate Evolution

Which of the following groups had made their appearance during the Ordovician period?

Which of the following features are shared by all of the jawed fish?

The following are differences between amphibians and reptiles EXCEPT

Which of the following groups are considered chordates but are lacking the vertebral column trait?

Mammals are different from birds in all these characteristics EXCEPT

It was during the ______ period within the ______era that chordates made their first appearance.

Amphibians were the dominant animal life during the ________ period.

Which of the following statements best describes the jawless fishes?

Which of the following groups of chordates would be most impacted by a decrease in the phytoplankton levels in the ocean?

The jawed fish and all other vertebrates are gnathostomes,which means they have

Which of these characteristics first developed in reptiles?

The position of mammals in evolution is best described as

______ were the first vertebrates to live on land and they evolved from _____.

Predacious meat eaters with large and conical-shaped canines are

The mammalian lineages include

Which of the following reptilian features enabled them to adapt to a terrestrial environment?

During the course of fish evolution two of the gill slits slowly evolved into ____________.

All chordates are also vertebrates.

The four defining characteristics of chordates are

The duckbill platypus is different than most mammals because it

A View of Life

Basic Chemistry

The Chemistry of Organic Molecules

Cell Structure and Function

Membrane Structure and Function

Metabolism: Energy and Enzymes

Photosynthesis

Cellular Respiration

The Cell Cycle and Cellular Reproduction

Meiosis and Sexual Reproduction

Mendelian Patterns of Inheritance

Molecular Biology of the Gene

Regulation of Gene Expression

Biotechnology and Genomics

Darwin and Evolution

How Populations Evolve

Speciation and Macroevolution

Origin and History of Life

Taxonomy,systematics,and Phylogeny

Viruses,bacteria,and Archaea

Protist Evolution and Diversity

Fungi Evolution and Diversity

Plant Evolution and Diversity

Flowering Plants: Structure and Organization

Flowering Plants: Nutrition and Transport

Flowering Plants: Control of Growth Responses

Flowering Plants: Reproduction

Invertebrate Evolution

Human Evolution

Animal Organization and Homeostasis

Circulation and Cardiovascular Systems

The Lymphatic and Immune Systems

Digestive Systems and Nutrition

Respiratory Systems

Body Fluid Regulation and Excretory Systems

Neurons and Nervous Systems

Sense Organs

Locomotion and Support Systems

Hormones and Endocrine Systems

Reproductive Systems

Animal Development

Behavioral Ecology

Population Ecology

Community and Ecosystem Ecology

Major Ecosystems of the Biosphere

Conservation of Biodiversity

Filters

It was during the period within the era that chordates made their first appearance.

__ were the first vertebrates to live on land and they evolved from _.