Question 1

The first eukaryotes evolved approximately ________ years ago.

Accepted Answer

A)  200,000 
B)  200 million 
C)  2 billion 
D)  2 trillion 
A)  200,000 
B)  200 million 
C)  2 billion 
D)  2 trillion

Question 2

Branches on the evolutionary tree are sometimes rearranged by scientists because

Accepted Answer

A)  new, related fossils or new information about existing fossils changes the understanding of the relationships. 
B)  new, unrelated fossils are intentionally put on the tree with existing fossils. 
C)  scientists are trying to prove a nonexistent relationship between species. 
D)  scientists have proven a relationship between two or more species. 
A)  new, related fossils or new information about existing fossils changes the understanding of the relationships. 
B)  new, unrelated fossils are intentionally put on the tree with existing fossils. 
C)  scientists are trying to prove a nonexistent relationship between species. 
D)  scientists have proven a relationship between two or more species.

Question 3

Monotremes,like the duck-billed platypus,are egg-laying mammals covered in hair,have mammary and skin glands,have three ear ossicles,are diphyodont,and possess dentary-squamosal jaw articulation.Marsupials,such as kangaroos and koalas,are pouched mammals that have a vertical tympanic membrane in addition to possessing characteristics observed in monotremes.Eutherians,such as humans,are placental mammals that have a vertical tympanic membrane in addition to possessing characteristics observed in monotremes. What traits are shared derived traits for monotremes,marsupials,and eutherians?

Accepted Answer

A)  mammary and skin glands, three ear ossicles, diphyodont, dentary-squamosal jaw articulation 
B)  vertical tympanic membrane, three ear ossicles, diphyodont, dentary-squamosal jaw articulation 
C)  three ear ossicles, diphyodont, dentary-squamosal jaw articulation, egg-laying 
D)  vertical tympanic membrane, three ear ossicles, diphyodont, placenta 
A)  mammary and skin glands, three ear ossicles, diphyodont, dentary-squamosal jaw articulation 
B)  vertical tympanic membrane, three ear ossicles, diphyodont, dentary-squamosal jaw articulation 
C)  three ear ossicles, diphyodont, dentary-squamosal jaw articulation, egg-laying 
D)  vertical tympanic membrane, three ear ossicles, diphyodont, placenta

Question 4

Which kind of organism makes up the oldest fossil found on Earth?

Accepted Answer

A)  protist 
B)  animal 
C)  bacteria 
D)  plant 
A)  protist 
B)  animal 
C)  bacteria 
D)  plant

Question 5

According to the figure of Xu's dinosaur-bird tree shown below,was Archaeopteryx the ancestor of modern birds? Explain your answer.

Accepted Answer

Xu's tree indicates that Archaeopteryx i

Question 6

Any two groups of organisms will have ________ most recent common ancestor(s).

Accepted Answer

A)  two 
B)  no more than four 
C)  only one 
D)  as many as 16 
A)  two 
B)  no more than four 
C)  only one 
D)  as many as 16

Question 7

Explain two ways that mass extinctions can have a profound impact on evolved biodiversity in the ecosystem.

Accepted Answer

One way that a mass extinction impacts b

Question 8

Correctly match the definition with the correct geologic time period.
-early dinosaurs; first mammals; mass extinction at end of period; 200-250 mya

Accepted Answer

A) Quaternary 
B) Jurassic 
C) Carboniferous 
D) Ordovician 
E) Precambrian
F)Paleogene/Neogene
G)Triassic
H)Devonian
I)Cambrian
J)Cretaceous
K)Permian
L)Silurian 
A) Quaternary 
B) Jurassic 
C) Carboniferous 
D) Ordovician 
E) Precambrian
F)Paleogene/Neogene
G)Triassic
H)Devonian
I)Cambrian
J)Cretaceous
K)Permian
L)Silurian

Question 9

Correctly match the definition with the correct geologic time period.
-continents come together to form Pangaea; reptiles dominate life on land by 265 mya; mass extinction at end of period; 250-300 mya

Accepted Answer

A) Quaternary 
B) Jurassic 
C) Carboniferous 
D) Ordovician 
E) Precambrian
F)Paleogene/Neogene
G)Triassic
H)Devonian
I)Cambrian
J)Cretaceous
K)Permian
L)Silurian 
A) Quaternary 
B) Jurassic 
C) Carboniferous 
D) Ordovician 
E) Precambrian
F)Paleogene/Neogene
G)Triassic
H)Devonian
I)Cambrian
J)Cretaceous
K)Permian
L)Silurian

Question 10

Match each adaptation with the most specific group in which that adaptation arose.
-production of chitin to strengthen and protect the body

Accepted Answer

A) gymnosperms 
B) angiosperms 
C) plants 
D) animals 
E) chordates
F)fungi 
A) gymnosperms 
B) angiosperms 
C) plants 
D) animals 
E) chordates
F)fungi

Question 11

Match each adaptation with the most specific group in which that adaptation arose.
-development of a waxy cuticle to retain moisture

Accepted Answer

A) gymnosperms 
B) angiosperms 
C) plants 
D) animals 
E) chordates
F)fungi 
A) gymnosperms 
B) angiosperms 
C) plants 
D) animals 
E) chordates
F)fungi

Question 12

Briefly explain how new scientific findings may change the arrangement of an evolutionary tree while enhancing our understanding of evolution.

Accepted Answer

Upon finding and evaluating fossils,it i

Question 13

The Cambrian explosion

Accepted Answer

A)  caused a lack of air in Earth's atmosphere. 
B)  was caused by an increase in volcanic activity. 
C)  was volcanic in nature. 
D)  increased the diversity of animal life on Earth. 
A)  caused a lack of air in Earth's atmosphere. 
B)  was caused by an increase in volcanic activity. 
C)  was volcanic in nature. 
D)  increased the diversity of animal life on Earth.

Question 14

Use the figure shown below to match the Linnaean classifications with category names for humans.  
-Primates

Accepted Answer

A) genus 
B) order 
C) family 
D) kingdom 
E) species
F)class
G)phylum 
A) genus 
B) order 
C) family 
D) kingdom 
E) species
F)class
G)phylum

Question 15

Gymnosperms and angiosperms are believed to be more closely related to one another than the other major plant groups because

Accepted Answer

A)  they alone possess vascular systems. 
B)  both groups produce separate male and female gametes. 
C)  they provide their embryos with stored food in seeds. 
D)  they alone possess a waxy cuticle. 
A)  they alone possess vascular systems. 
B)  both groups produce separate male and female gametes. 
C)  they provide their embryos with stored food in seeds. 
D)  they alone possess a waxy cuticle.

Question 16

Which of the kingdoms below share a most recent,common ancestor?

Accepted Answer

A)  Plantae and Fungi 
B)  Plantae and Animalia 
C)  Animalia and Protista 
D)  Animalia and Fungi 
A)  Plantae and Fungi 
B)  Plantae and Animalia 
C)  Animalia and Protista 
D)  Animalia and Fungi

Question 17

Neighboring plant or fungi cells share a common cell wall,making multicellularity relatively simple.How do animal cells remain connected to one another?

Accepted Answer

A)  Animal cells share a common plasma membrane rather than a common cell wall. 
B)  Long interconnecting fibers extend from the nucleus of one cell to the nucleus of an adjacent cell. 
C)  Most animals produce a felt-like extracellular matrix to which their cells can attach. 
D)  Animal cells are connected to each other by the cytoskeleton. 
A)  Animal cells share a common plasma membrane rather than a common cell wall. 
B)  Long interconnecting fibers extend from the nucleus of one cell to the nucleus of an adjacent cell. 
C)  Most animals produce a felt-like extracellular matrix to which their cells can attach. 
D)  Animal cells are connected to each other by the cytoskeleton.

Question 18

The appearance of eukaryotes may have been delayed until more ________ accumulated in Earth's atmosphere.

Accepted Answer

A)  oxygen 
B)  nitrogen 
C)  carbon 
D)  sulfur 
A)  oxygen 
B)  nitrogen 
C)  carbon 
D)  sulfur

Question 19

Use the figure shown below to match the Linnaean classifications with category names for humans.  
-Chordata

Accepted Answer

A) genus 
B) order 
C) family 
D) kingdom 
E) species
F)class
G)phylum 
A) genus 
B) order 
C) family 
D) kingdom 
E) species
F)class
G)phylum

Question 20

About 540 mya,there was an astonishing burst of evolutionary activity that correlated to the first appearance in the fossil record of most of the major living animal groups.Popularly known as the ________,this geologic time changed the face of life on Earth.

Accepted Answer

The answer of About 540 mya,there was an astonishing burst...

The first eukaryotes evolved approximately ________ years ago.

Branches on the evolutionary tree are sometimes rearranged by scientists because

Which kind of organism makes up the oldest fossil found on Earth?

According to the figure of Xu's dinosaur-bird tree shown below,was Archaeopteryx the ancestor of modern birds? Explain your answer.

Any two groups of organisms will have ________ most recent common ancestor(s).

Explain two ways that mass extinctions can have a profound impact on evolved biodiversity in the ecosystem.

Correctly match the definition with the correct geologic time period. -early dinosaurs; first mammals; mass extinction at end of period; 200-250 mya

Correctly match the definition with the correct geologic time period. -continents come together to form Pangaea; reptiles dominate life on land by 265 mya; mass extinction at end of period; 250-300 mya

Match each adaptation with the most specific group in which that adaptation arose. -production of chitin to strengthen and protect the body

Match each adaptation with the most specific group in which that adaptation arose. -development of a waxy cuticle to retain moisture

Briefly explain how new scientific findings may change the arrangement of an evolutionary tree while enhancing our understanding of evolution.

The Cambrian explosion

Use the figure shown below to match the Linnaean classifications with category names for humans. -Primates

Gymnosperms and angiosperms are believed to be more closely related to one another than the other major plant groups because

Which of the kingdoms below share a most recent,common ancestor?

Neighboring plant or fungi cells share a common cell wall,making multicellularity relatively simple.How do animal cells remain connected to one another?

The appearance of eukaryotes may have been delayed until more ________ accumulated in Earth's atmosphere.

Use the figure shown below to match the Linnaean classifications with category names for humans. -Chordata

About 540 mya,there was an astonishing burst of evolutionary activity that correlated to the first appearance in the fossil record of most of the major living animal groups.Popularly known as the ________,this geologic time changed the face of life on Earth.

The Nature of Science

Evaluating Scientific Claims

Chemistry of Life

Life Is Cellular

How Cells Work

Cell Division

Patterns of Inheritance

Chromosomes and Human Genetics

What Genes Are

How Genes Work

Evidence for Evolution

Mechanisms of Evolution

Adaptation and Species

Bacteria and Archaea

Plants, Fungi, and Protists

Animals and Human Evolution

General Principles of Ecology

Growth of Populations

Communities of Organisms

Ecosystems

Filters

Exam 14: The History of Life

The first eukaryotes evolved approximately ________ years ago.

Branches on the evolutionary tree are sometimes rearranged by scientists because

Which kind of organism makes up the oldest fossil found on Earth?

According to the figure of Xu's dinosaur-bird tree shown below,was Archaeopteryx the ancestor of modern birds? Explain your answer.

Any two groups of organisms will have ________ most recent common ancestor(s).

Explain two ways that mass extinctions can have a profound impact on evolved biodiversity in the ecosystem.

Correctly match the definition with the correct geologic time period. -early dinosaurs; first mammals; mass extinction at end of period; 200-250 mya

Correctly match the definition with the correct geologic time period. -continents come together to form Pangaea; reptiles dominate life on land by 265 mya; mass extinction at end of period; 250-300 mya

Match each adaptation with the most specific group in which that adaptation arose. -production of chitin to strengthen and protect the body

Match each adaptation with the most specific group in which that adaptation arose. -development of a waxy cuticle to retain moisture

Briefly explain how new scientific findings may change the arrangement of an evolutionary tree while enhancing our understanding of evolution.

The Cambrian explosion

Use the figure shown below to match the Linnaean classifications with category names for humans. -Primates

Gymnosperms and angiosperms are believed to be more closely related to one another than the other major plant groups because

Which of the kingdoms below share a most recent,common ancestor?

Neighboring plant or fungi cells share a common cell wall,making multicellularity relatively simple.How do animal cells remain connected to one another?

The appearance of eukaryotes may have been delayed until more ________ accumulated in Earth's atmosphere.

Use the figure shown below to match the Linnaean classifications with category names for humans. -Chordata

About 540 mya,there was an astonishing burst of evolutionary activity that correlated to the first appearance in the fossil record of most of the major living animal groups.Popularly known as the ________,this geologic time changed the face of life on Earth.

The Nature of Science

Evaluating Scientific Claims

Chemistry of Life

Life Is Cellular

How Cells Work

Cell Division

Patterns of Inheritance

Chromosomes and Human Genetics

What Genes Are

How Genes Work

Evidence for Evolution

Mechanisms of Evolution

Adaptation and Species

Bacteria and Archaea

Plants, Fungi, and Protists

Animals and Human Evolution

General Principles of Ecology

Growth of Populations

Communities of Organisms

Ecosystems

Filters