Question 1

Which biologist first proposed that all organisms share a common ancestry?

Accepted Answer

A)  Aristotle 
B)  Linnaeus 
C)  Whittaker 
D)  Woese 
E)  Darwin 
A)  Aristotle 
B)  Linnaeus 
C)  Whittaker 
D)  Woese 
E)  Darwin

Question 2

Once an organism is placed in a specific species, the designation cannot be changed.

Accepted Answer

A) True 
 B)False

Question 3

Sponges and worms belong to the domain .

Accepted Answer

The answer of Sponges and worms belong to the domain...

Question 4

Two butterflies have identical wing patterns, but in one the pigment is blue and in the other the pigment is yellow. The original ancestor had green wing pigments. The wing pigment is an example of a(n) .

Accepted Answer

The answer of Two butterflies have identical wing patterns, but...

Question 5

The smallest diagnosable group that contains all the descendants of a single common ancestor is a(n) .

Accepted Answer

phylogenet

Question 6

Which of the following is the smallest or least inclusive group?

Accepted Answer

A)  Genus 
B)  Kingdom 
C)  Family 
D)  Domain 
E)  Class 
A)  Genus 
B)  Kingdom 
C)  Family 
D)  Domain 
E)  Class

Question 7

Who was the Swedish naturalist who established the modern system for classifying organisms?

Accepted Answer

A)  Aristotle 
B)  Linnaeus 
C)  Whittaker 
D)  Woese 
E)  Darwin 
A)  Aristotle 
B)  Linnaeus 
C)  Whittaker 
D)  Woese 
E)  Darwin

Question 8

Which group contains mostly unicellular, eukaryotic organisms?

Accepted Answer

A)  Bacteria 
B)  Animalia 
C)  Protists 
D)  Plantae 
E)  Fungi 
A)  Bacteria 
B)  Animalia 
C)  Protists 
D)  Plantae 
E)  Fungi

Question 9

How did Darwin's evolutionary theory change the significance of the taxonomic categories of organisms?

Accepted Answer

Taxonomic categories

Question 10

-Based on the eukaryotic tree, gymnosperms are most closely related to

Accepted Answer

A)  chlorophyta. 
B)  oomycota. 
C)  porifera. 
D)  angiosperms. 
E)  zygomycota. 
A)  chlorophyta. 
B)  oomycota. 
C)  porifera. 
D)  angiosperms. 
E)  zygomycota.

Question 11

The science of reconstructing an organism's evolutionary history is called systematics.

Accepted Answer

A) True 
 B)False

Question 12

-Based on the evolutionary tree shown here, which two organisms are most closely related?

Accepted Answer

A)  Humans and orangutans 
B)  Chimps and bonobos 
C)  Orangutans and common gibbons 
D)  Humans and gorillas 
E)  Common gibbons and chimps 
A)  Humans and orangutans 
B)  Chimps and bonobos 
C)  Orangutans and common gibbons 
D)  Humans and gorillas 
E)  Common gibbons and chimps

Question 13

Scientists currently identify three domains: plants, animals, and bacteria.

Accepted Answer

A) True 
 B)False

Question 14

A modern system of classification gives the category name domain to

Accepted Answer

A)  insects. 
B)  Prokaryota. 
C)  Hominidae. 
D)  Fungi. 
E)  Eukarya. 
A)  insects. 
B)  Prokaryota. 
C)  Hominidae. 
D)  Fungi. 
E)  Eukarya.

Question 15

DNA analysis reveals that two species of birds appear to have evolved from a common ancestor. These two species belong to the same

Accepted Answer

A)  gene pool. 
B)  species. 
C)  breeding group. 
D)  clade. 
E)  nest group. 
A)  gene pool. 
B)  species. 
C)  breeding group. 
D)  clade. 
E)  nest group.

Question 16

All organisms that are derived from a single common ancestor make up a clade.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following is the smallest or least inclusive group?

Accepted Answer

A)  Kingdom 
B)  Species 
C)  Genus 
D)  Class 
E)  Order 
A)  Kingdom 
B)  Species 
C)  Genus 
D)  Class 
E)  Order

Question 18

Comparing the chromosomes of chimpanzees and humans has revealed that the two species

Accepted Answer

A)  are only distantly related. 
B)  should be classified in the same species. 
C)  should be classified in the same genus. 
D)  are closely related. 
E)  should not be classified in the same family. 
A)  are only distantly related. 
B)  should be classified in the same species. 
C)  should be classified in the same genus. 
D)  are closely related. 
E)  should not be classified in the same family.

Question 19

Explain how systematics and Linnaean taxonomy differ.

Accepted Answer

Linnaean taxonomy is based on

Question 20

Genetics studies of human populations have revealed that

Accepted Answer

A)  it is nearly impossible to determine the relatedness of human populations. 
B)  Homo sapiens probably did not evolve from primates. 
C)  all humans are virtually identical. 
D)  humans have very little genetic variation compared to other mammals. 
E)  human populations vary tremendously at the level of DNA sequences. 
A)  it is nearly impossible to determine the relatedness of human populations. 
B)  Homo sapiens probably did not evolve from primates. 
C)  all humans are virtually identical. 
D)  humans have very little genetic variation compared to other mammals. 
E)  human populations vary tremendously at the level of DNA sequences.

Exam 19: Systematics: Seeking Order Amid Diversity

Which biologist first proposed that all organisms share a common ancestry?

Once an organism is placed in a specific species, the designation cannot be changed.

Sponges and worms belong to the domain .

Two butterflies have identical wing patterns, but in one the pigment is blue and in the other the pigment is yellow. The original ancestor had green wing pigments. The wing pigment is an example of a(n) .

The smallest diagnosable group that contains all the descendants of a single common ancestor is a(n) .

Which of the following is the smallest or least inclusive group?

Who was the Swedish naturalist who established the modern system for classifying organisms?

Which group contains mostly unicellular, eukaryotic organisms?

How did Darwin's evolutionary theory change the significance of the taxonomic categories of organisms?

-Based on the eukaryotic tree, gymnosperms are most closely related to

The science of reconstructing an organism's evolutionary history is called systematics.

-Based on the evolutionary tree shown here, which two organisms are most closely related?

Scientists currently identify three domains: plants, animals, and bacteria.

A modern system of classification gives the category name domain to

DNA analysis reveals that two species of birds appear to have evolved from a common ancestor. These two species belong to the same

All organisms that are derived from a single common ancestor make up a clade.

Which of the following is the smallest or least inclusive group?

Comparing the chromosomes of chimpanzees and humans has revealed that the two species

Explain how systematics and Linnaean taxonomy differ.

Genetics studies of human populations have revealed that

An Introduction to Life on Earth

Atoms, Molecules, and Life

Biological Molecules

Cell Structure and Function

Cell Membrane Structure and Function

Energy Flow in the Life of a Cell

Capturing Solar Energy: Photosynthesis

Harvesting Energy: Glycolysis and Cellular Respiration

Cellular Reproduction

Meiosis: the Basis of Sexual Reproduction

Patterns of Inheritance

Dna: the Molecule of Heredity

Gene Expression and Regulation

Biotechnology

Principles of Evolution

How Populations Evolve

The Origin of Species

The History of Life

The Diversity of Prokaryotes and Viruses

The Diversity of Protists

The Diversity of Plants

The Diversity of Fungi

Animal Diversity I: Invertebrates

Animal Diversity II: Vertebrates

Animal Behavior

Population Growth and Regulation

Community Interactions

Energy Flow and Nutrient Cycling in Ecosystems

Earths Diverse Ecosystems

Conserving Earths Biodiversity

Homeostasis and the Organization of the Animal Body

Circulation

Respiration

Nutrition and Digestion

The Urinary System

Defenses Against Disease

Chemical Control of the Animal Body: the Endocrine System

The Nervous System

The Senses

Action and Support: the Muscles and Skeleton

Animal Reproduction

Animal Development

Plant Anatomy and Nutrient Transport

Plant Reproduction and Development

Plant Responses to the Environment

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