Question 1

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 2

The figure below shows the number of living families that existed on Earth during the last 540 million years. The sudden decreases in family number at 445, 360, 250, 200 and 65 million years ago represent Earth's five mass extinction events.  
Based on this data, which mass extinction had the biggest impact on the overall diversity of life on Earth?

Accepted Answer

A)  200 million years ago 
B)  250 million years ago 
C)  360 million years ago 
D)  445 million years ago 
A)  200 million years ago 
B)  250 million years ago 
C)  360 million years ago 
D)  445 million years ago

Question 3

Which of the following represents the order in which terrestrial life evolved?

Accepted Answer

A)  millipedes, green plants, amphibians, insects, reptiles 
B)  millipedes, insects, green plants reptiles, amphibians 
C)  green plants, reptiles, millipedes, insects, amphibians 
D)  green plants, millipedes, insects, amphibians, reptiles 
A)  millipedes, green plants, amphibians, insects, reptiles 
B)  millipedes, insects, green plants reptiles, amphibians 
C)  green plants, reptiles, millipedes, insects, amphibians 
D)  green plants, millipedes, insects, amphibians, reptiles

Question 4

Examine the graph below.  
At which labeled point in this graph are the first eukaryotes thought to have evolved?

Accepted Answer

A)  Point A 
B)  Point B 
C)  Point C 
D)  Point D 
A)  Point A 
B)  Point B 
C)  Point C 
D)  Point D

Question 5

Which of the following is not a key step in the evolutionary transition from reptiles to mammals?

Accepted Answer

A)  the development of an opening in the bones behind the eyes 
B)  the development of a larger hole behind the eyes and some specialization of teeth 
C)  changes in the jaw hinge 
D)  the development of bones in the reptilian inner ear 
A)  the development of an opening in the bones behind the eyes 
B)  the development of a larger hole behind the eyes and some specialization of teeth 
C)  changes in the jaw hinge 
D)  the development of bones in the reptilian inner ear

Question 6

The first land plants

Accepted Answer

A)  were descendants of fungi that developed photosynthesis. 
B)  evolved from green algae that could already carry out photosynthesis. 
C)  were ferns and small shrubs. 
D)  grew from the seeds of marine plants. 
A)  were descendants of fungi that developed photosynthesis. 
B)  evolved from green algae that could already carry out photosynthesis. 
C)  were ferns and small shrubs. 
D)  grew from the seeds of marine plants.

Question 7

North America and Europe are slowly but surely drifting away from one another.

Accepted Answer

A) True 
 B)False

Question 8

Life evolved on land long after there had been life in the oceans. Which of the following had to occur before organisms were able to live on land?

Accepted Answer

A)  The Earth's land masses had to become wetter. 
B)  Organisms had to adapt to the harsh dry conditions faced by life on land. 
C)  Animals had to develop internal skeletons and efficient transport mechanisms. 
D)  The supercontinent Pangaea had to break up into subcontinents. 
A)  The Earth's land masses had to become wetter. 
B)  Organisms had to adapt to the harsh dry conditions faced by life on land. 
C)  Animals had to develop internal skeletons and efficient transport mechanisms. 
D)  The supercontinent Pangaea had to break up into subcontinents.

Question 9

The oldest fossils of terrestrial animals are of

Accepted Answer

A)  spiders and millipedes. 
B)  insects and snakes. 
C)  mice and bats. 
D)  birds and mammals. 
A)  spiders and millipedes. 
B)  insects and snakes. 
C)  mice and bats. 
D)  birds and mammals.

Exam 19: The Evolutionary History of Life

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

Which of the following represents the order in which terrestrial life evolved?

Examine the graph below. At which labeled point in this graph are the first eukaryotes thought to have evolved?

Which of the following is not a key step in the evolutionary transition from reptiles to mammals?

The first land plants

North America and Europe are slowly but surely drifting away from one another.

Life evolved on land long after there had been life in the oceans. Which of the following had to occur before organisms were able to live on land?

The oldest fossils of terrestrial animals are of

The Nature of Science and the Characteristics of Life

Organizing the Diversity of Life

Major Groups of Living Organisms

Chemical Building Blocks

Cell Structure and Internal Compartments

Cell Membranes, Transport, and Communication

Energy and Enzymes

Photosynthesis and Cellular Respiration

Cell Division

Patterns of Inheritance

Chromosomes and Human Genetics

DNA

From Gene to Protein

Control of Gene Expression

DNA Technology

How Evolution Works

Evolution of Populations

Adaptation and Speciation

Maintaining the Internal Environment

Animal Nutrition and Digestion

Gas Exchange

The Circulatory System

Animal Hormones

The Nervous System

Sensing the Environment

Skeletons, Muscles, and Movement

Defenses against Disease

Reproduction and Development

Animal Behavior

Plant Structure, Nutrition, and Transport

Plant Growth and Reproduction

The Biosphere

Growth of Populations

Interactions among Organisms

Communities of Organisms

Ecosystems

Global Change

Biodiversity and People

Cancer: Cell Division Out of Control

Harnessing the Human Genome

Humans and Evolution

Smoking--Beyond Lung Cancer

Feeding a Hungry Planet

Building a Sustainable Society

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