Question 1

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

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 2

How is the current mass extinction,shown in the figure below,similar to past mass extinctions? What is the cause of the current mass extinction?

Accepted Answer

In all mass extinctions a high

Question 3

What is a likely reason the Cretaceous extinction about 65 mya is the best studied mass extinction?

Accepted Answer

A)  It is the most recent mass extinction. Therefore, the fossils are typically closer to the surface and more easily reached for study. 
B)  It was by far the most far-reaching extinction and most interesting extinction event because it killed everything in the oceans. 
C)  It was the mass extinction farthest back in time, and it gave rise to the Cambrian explosion. 
D)  It was the mass extinction event that killed off all of the animals and plants that arose during the Cambrian explosion. 
A)  It is the most recent mass extinction. Therefore, the fossils are typically closer to the surface and more easily reached for study. 
B)  It was by far the most far-reaching extinction and most interesting extinction event because it killed everything in the oceans. 
C)  It was the mass extinction farthest back in time, and it gave rise to the Cambrian explosion. 
D)  It was the mass extinction event that killed off all of the animals and plants that arose during the Cambrian explosion.

Question 4

The evolutionary history of the protists remains unresolved,but it is being refined with the addition of DNA evidence.This is an example of how scientific

Accepted Answer

A)  data may change our interpretation of an evolutionary tree without challenging our understanding of evolution. 
B)  data proves that a hypothesis regarding an evolutionary tree is true. 
C)  evidence proves that the theory of evolution is wrong. 
D)  evidence proves that the Protista did not share the same universal ancestor as the rest of the living organisms on Earth. 
A)  data may change our interpretation of an evolutionary tree without challenging our understanding of evolution. 
B)  data proves that a hypothesis regarding an evolutionary tree is true. 
C)  evidence proves that the theory of evolution is wrong. 
D)  evidence proves that the Protista did not share the same universal ancestor as the rest of the living organisms on Earth.

Question 5

The mass extinction at the end of the Cretaceous period about 65 mya is believed to have been caused by a massive comet or asteroid smashing into what is now known as the Yucatan Peninsula in the Gulf of Mexico.The debris arising from this impact would have blocked the sun's rays from reaching Earth.How would this cause a mass extinction?

Accepted Answer

A)  With no sunlight, the plants would not be able to photosynthesize and they would die. Any animals that fed on those plants would also die and this chain reaction would continue up the food chain. 
B)  A giant fireball would have spontaneously incinerated every living thing, and the evolution of life on Earth would have started completely fresh. 
C)  A massive wave spread out from the epicenter of the impact and drowned all of the terrestrial life on Earth. Evolution of all life on land started over after that event. 
D)  All of the terrestrial plants and animals choked to death on the debris cloud. 
A)  With no sunlight, the plants would not be able to photosynthesize and they would die. Any animals that fed on those plants would also die and this chain reaction would continue up the food chain. 
B)  A giant fireball would have spontaneously incinerated every living thing, and the evolution of life on Earth would have started completely fresh. 
C)  A massive wave spread out from the epicenter of the impact and drowned all of the terrestrial life on Earth. Evolution of all life on land started over after that event. 
D)  All of the terrestrial plants and animals choked to death on the debris cloud.

Question 6

During the Devonian period,plants evolved which of the following key innovations to overcome the harsh,dry conditions of life on land and flourish?

Accepted Answer

A)  waterproof cuticle, vascular systems, structural support tissues, leaves, roots, seeds, and specialized reproductive structures 
B)  amniotic eggs with a hard shell, photosynthesis, flowers with protected seeds 
C)  flowers with protected seeds, photosynthesis, hard-shelled amniotic eggs 
D)  photosynthesis, flowers with protected seeds, waterproof cuticle 
A)  waterproof cuticle, vascular systems, structural support tissues, leaves, roots, seeds, and specialized reproductive structures 
B)  amniotic eggs with a hard shell, photosynthesis, flowers with protected seeds 
C)  flowers with protected seeds, photosynthesis, hard-shelled amniotic eggs 
D)  photosynthesis, flowers with protected seeds, waterproof cuticle

Question 7

A marine biologist has isolated a microorganism from the Gulf of Mexico.This organism is unicellular,photosynthetic,uses a flagellum to swim,and has been observed ingesting smaller microorganisms in its vicinity.To what kingdom does this organism MOST likely belong?

Accepted Answer

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

Question 8

The most ancient lineage in kingdom Animalia is the ________,followed closely by the ________.

Accepted Answer

A)  sponges; cnidarians 
B)  echinoderms; chordates 
C)  chordates; deuterostomes 
D)  arthropods; protostomes 
A)  sponges; cnidarians 
B)  echinoderms; chordates 
C)  chordates; deuterostomes 
D)  arthropods; protostomes

Question 9

Early birds had small,thick skulls and two toes on each foot.Archaeopteryx had a long,almost pointy skull and three toes on each foot.Early birds and Archaeopteryx shared the traits of feathers; clawed hands; and a long,bony tail.Examine the two trees presented in the figure below.Assuming that Xiaotingia shared traits with Archaeopteryx that neither of them shared with birds and looking only at the traits presented here,which of the trees shows the most likely relationship between these three animals? Support your answer by indicating which tree branch is initiated by which characteristic.

Accepted Answer

Xu's dinosaur-bird tree is the more prob

Question 10

Why might many new species form in the aftermath of a mass extinction?

Accepted Answer

A)  Gene flow among the remaining species would be increased, giving rise to many new genetic recombinations. 
B)  Changed environments and reduced competition would provide opportunities for new adaptations. 
C)  New environments would increase mutation rates. 
D)  Populations of remaining species would expand rapidly and reduce geographic isolation. 
A)  Gene flow among the remaining species would be increased, giving rise to many new genetic recombinations. 
B)  Changed environments and reduced competition would provide opportunities for new adaptations. 
C)  New environments would increase mutation rates. 
D)  Populations of remaining species would expand rapidly and reduce geographic isolation.

Question 11

The domain ________ encompasses the traditional four kingdoms of Protista,Plantae,Fungi,and Animalia.

Accepted Answer

The answer of The domain ________ encompasses the traditional four...

Question 12

According to the tree below,which of the following combinations of organisms are MOST closely related?

Accepted Answer

A)  amoebas and plants 
B)  animals and fungi 
C)  plants and fungi 
D)  fungi and amoebas 
A)  amoebas and plants 
B)  animals and fungi 
C)  plants and fungi 
D)  fungi and amoebas

Question 13

At the base of the evolutionary tree of all life is the ________ ancestor.

Accepted Answer

A)  universal 
B)  convergent 
C)  derived 
D)  descended 
A)  universal 
B)  convergent 
C)  derived 
D)  descended

Question 14

Correctly match the definition with the correct geologic time period.
-repeated advance and retreat of glaciers; evolution of humans; extinction of large mammals and birds; 0-2.6 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 15

The mass extinction at the end of the Permian period (about 250 million years ago)is thought to have killed off as many as 60 percent of the animal families.What group of animals dominated life on land at that time?

Accepted Answer

A)  trilobites 
B)  mammals 
C)  reptiles 
D)  amphibians 
A)  trilobites 
B)  mammals 
C)  reptiles 
D)  amphibians

Question 16

The current classification system used by biologists is

Accepted Answer

A)  complex and unchanging. 
B)  universally accepted by all biologists. 
C)  based on four generalized types of living organisms: Bacteria, Archaea, Eukarya, and Protista. 
D)  updated and revised whenever new information becomes available. 
A)  complex and unchanging. 
B)  universally accepted by all biologists. 
C)  based on four generalized types of living organisms: Bacteria, Archaea, Eukarya, and Protista. 
D)  updated and revised whenever new information becomes available.

Question 17

In an evolutionary tree,a given ancestor and all its descendants make up a ________,or branch.

Accepted Answer

The answer of In an evolutionary tree,a given ancestor and...

Question 18

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

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 19

List the three domains of life.Then,identify which two domains are most closely related to one another.Finally,indicate which domains are classified as prokaryotes and which are classified as eukaryotes.

Accepted Answer

The three domains of life are Bacteria,A

Question 20

When did photosynthesis evolve and how did it influence the evolution of life on Earth?

Accepted Answer

Roughly 2.8 bya (during the Precambrian

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

How is the current mass extinction,shown in the figure below,similar to past mass extinctions? What is the cause of the current mass extinction?

What is a likely reason the Cretaceous extinction about 65 mya is the best studied mass extinction?

The evolutionary history of the protists remains unresolved,but it is being refined with the addition of DNA evidence.This is an example of how scientific

During the Devonian period,plants evolved which of the following key innovations to overcome the harsh,dry conditions of life on land and flourish?

A marine biologist has isolated a microorganism from the Gulf of Mexico.This organism is unicellular,photosynthetic,uses a flagellum to swim,and has been observed ingesting smaller microorganisms in its vicinity.To what kingdom does this organism MOST likely belong?

The most ancient lineage in kingdom Animalia is the ,followed closely by the .

Why might many new species form in the aftermath of a mass extinction?

The domain ________ encompasses the traditional four kingdoms of Protista,Plantae,Fungi,and Animalia.

According to the tree below,which of the following combinations of organisms are MOST closely related?

At the base of the evolutionary tree of all life is the ________ ancestor.

Correctly match the definition with the correct geologic time period. -repeated advance and retreat of glaciers; evolution of humans; extinction of large mammals and birds; 0-2.6 mya

The mass extinction at the end of the Permian period (about 250 million years ago)is thought to have killed off as many as 60 percent of the animal families.What group of animals dominated life on land at that time?

The current classification system used by biologists is

In an evolutionary tree,a given ancestor and all its descendants make up a ________,or branch.

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

List the three domains of life.Then,identify which two domains are most closely related to one another.Finally,indicate which domains are classified as prokaryotes and which are classified as eukaryotes.

When did photosynthesis evolve and how did it influence the evolution 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

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

How is the current mass extinction,shown in the figure below,similar to past mass extinctions? What is the cause of the current mass extinction?

What is a likely reason the Cretaceous extinction about 65 mya is the best studied mass extinction?

The evolutionary history of the protists remains unresolved,but it is being refined with the addition of DNA evidence.This is an example of how scientific

During the Devonian period,plants evolved which of the following key innovations to overcome the harsh,dry conditions of life on land and flourish?

A marine biologist has isolated a microorganism from the Gulf of Mexico.This organism is unicellular,photosynthetic,uses a flagellum to swim,and has been observed ingesting smaller microorganisms in its vicinity.To what kingdom does this organism MOST likely belong?

The most ancient lineage in kingdom Animalia is the ________,followed closely by the ________.

Why might many new species form in the aftermath of a mass extinction?

The domain ________ encompasses the traditional four kingdoms of Protista,Plantae,Fungi,and Animalia.

According to the tree below,which of the following combinations of organisms are MOST closely related?

At the base of the evolutionary tree of all life is the ________ ancestor.

Correctly match the definition with the correct geologic time period. -repeated advance and retreat of glaciers; evolution of humans; extinction of large mammals and birds; 0-2.6 mya

The mass extinction at the end of the Permian period (about 250 million years ago)is thought to have killed off as many as 60 percent of the animal families.What group of animals dominated life on land at that time?

The current classification system used by biologists is

In an evolutionary tree,a given ancestor and all its descendants make up a ________,or branch.

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

List the three domains of life.Then,identify which two domains are most closely related to one another.Finally,indicate which domains are classified as prokaryotes and which are classified as eukaryotes.

When did photosynthesis evolve and how did it influence the evolution 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

The most ancient lineage in kingdom Animalia is the ,followed closely by the .