Question 1

The first self-replicating molecules were probably ________.

Accepted Answer

The answer of The first self-replicating molecules were probably ________....

Question 2

________ may have evolved from photosynthetic cyanobacteria that were engulfed by predatory prokaryotic cells.

Accepted Answer

The answer of ________ may have evolved from photosynthetic cyanobacteria...

Question 3

Ferns and club mosses had an advantage over earlier plants because they developed:

Accepted Answer

A) photosynthesis. 
B) mitochondria. 
C) swimming sperm. 
D) cones. 
E) flowers. 
A) photosynthesis. 
B) mitochondria. 
C) swimming sperm. 
D) cones. 
E) flowers.

Question 4

Living organisms can spontaneously generate from nonliving matter. True or False?

Accepted Answer

A) True 
 B)False

Question 5

What is the significance of upright walking?

Accepted Answer

A) It provides good posture. 
B) It facilitates circulation. 
C) It frees the hands for gathering and carrying food. 
D) It facilitates social interactions. 
E) It facilitates digestion. 
A) It provides good posture. 
B) It facilitates circulation. 
C) It frees the hands for gathering and carrying food. 
D) It facilitates social interactions. 
E) It facilitates digestion.

Question 6

An adaptation that is closely associated with hominin evolution is:

Accepted Answer

A) a backbone. 
B) lungs. 
C) omnivory. 
D) grasping hands. 
E) hair. 
A) a backbone. 
B) lungs. 
C) omnivory. 
D) grasping hands. 
E) hair.

Question 7

Based on current knowledge about the conditions of the early Earth, the first organisms were most likely:

Accepted Answer

A) photosynthetic prokaryotes. 
B) photosynthetic eukaryotes. 
C) anaerobic prokaryotes. 
D) anaerobic eukaryotes. 
E) multicellular eukaryotes. 
A) photosynthetic prokaryotes. 
B) photosynthetic eukaryotes. 
C) anaerobic prokaryotes. 
D) anaerobic eukaryotes. 
E) multicellular eukaryotes.

Question 8

Cell size is limited by the ability of oxygen, nutrients, and wastes to diffuse through the cell membrane. True or False?

Accepted Answer

A) True 
 B)False

Question 9

The scientific name for Neanderthals is:

Accepted Answer

A) Homo sapiens. 
B) Homo erectus. 
C) Homo habilis. 
D) Australopithecus robustus. 
E) Homo neanderthalensis. 
A) Homo sapiens. 
B) Homo erectus. 
C) Homo habilis. 
D) Australopithecus robustus. 
E) Homo neanderthalensis.

Question 10

Prior to continental drift, North America and Eurasia formed a supercontinent called ________.

Accepted Answer

The answer of Prior to continental drift, North America and...

Question 11

Why is RNA considered by many scientists to have been the basis for early forms of life?

Accepted Answer

RNA is capable of both information stora

Question 12

The earliest life forms were photosynthetic eukaryotes. True or False?

Accepted Answer

A) True 
 B)False

Question 13

Arthropods were able to move onto land because their ________ prevented dehydration and provided support.

Accepted Answer

The answer of Arthropods were able to move onto land...

Question 14

What compounds were used in Miller and Urey's experiment to simulate the atmosphere of early Earth?

Accepted Answer

A) oxygen, ammonia, hydrogen, and methane 
B) ammonia, hydrogen, and carbon dioxide 
C) water, oxygen, hydrogen, and methane 
D) water, ammonia, hydrogen, and methane 
E) water, oxygen, ammonia, and methane 
A) oxygen, ammonia, hydrogen, and methane 
B) ammonia, hydrogen, and carbon dioxide 
C) water, oxygen, hydrogen, and methane 
D) water, ammonia, hydrogen, and methane 
E) water, oxygen, ammonia, and methane

Question 15

The fossil record indicates that about 600 million years ago, a wide variety of ________ animals had evolved in the oceans.

Accepted Answer

The answer of The fossil record indicates that about 600...

Question 16

The species that paleoanthropologists believe may be the most direct ancestor to Homo sapiens is:

Accepted Answer

A) Homo habilis. 
B) Homo ergaster. 
C) Homo erectus. 
D) Homo neanderthalensis. 
E) Homo heidelbergensis. 
A) Homo habilis. 
B) Homo ergaster. 
C) Homo erectus. 
D) Homo neanderthalensis. 
E) Homo heidelbergensis.

Question 17

To survive successfully on land, plants needed to develop:

Accepted Answer

A) photosynthesis. 
B) swimming sperm. 
C) internal skeletons. 
D) the ability to use oxygen. 
E) methods to prevent water loss. 
A) photosynthesis. 
B) swimming sperm. 
C) internal skeletons. 
D) the ability to use oxygen. 
E) methods to prevent water loss.

Question 18

Organisms that have complex internal membranes are prokaryotic. True or False?

Accepted Answer

A) True 
 B)False

Question 19

One advantage that enabled the seed plants to greatly surpass the ferns in colonizing the land was the evolution of:

Accepted Answer

A) a fibrous root system. 
B) a woody stem. 
C) sex without swimming sperm. 
D) spores. 
E) photosynthesis. 
A) a fibrous root system. 
B) a woody stem. 
C) sex without swimming sperm. 
D) spores. 
E) photosynthesis.

Question 20

The scenario of prebiotic evolution leading to the origin of life on Earth is plausible because:

Accepted Answer

A) experiments suggest that all the chemical components of living cells can be formed quickly from inorganic precursors. 
B) there was a vast period of time for simple chemicals to evolve into complex cells. 
C) it has been observed to occur near thermal vents at the bottom of the ocean. 
D) it has been observed under laboratory conditions. 
E) it has been observed to occur on other planets. 
A) experiments suggest that all the chemical components of living cells can be formed quickly from inorganic precursors. 
B) there was a vast period of time for simple chemicals to evolve into complex cells. 
C) it has been observed to occur near thermal vents at the bottom of the ocean. 
D) it has been observed under laboratory conditions. 
E) it has been observed to occur on other planets.

Exam 17: The History of Life

The first self-replicating molecules were probably ________.

________ may have evolved from photosynthetic cyanobacteria that were engulfed by predatory prokaryotic cells.

Ferns and club mosses had an advantage over earlier plants because they developed:

Living organisms can spontaneously generate from nonliving matter. True or False?

What is the significance of upright walking?

An adaptation that is closely associated with hominin evolution is:

Based on current knowledge about the conditions of the early Earth, the first organisms were most likely:

Cell size is limited by the ability of oxygen, nutrients, and wastes to diffuse through the cell membrane. True or False?

The scientific name for Neanderthals is:

Prior to continental drift, North America and Eurasia formed a supercontinent called ________.

Why is RNA considered by many scientists to have been the basis for early forms of life?

The earliest life forms were photosynthetic eukaryotes. True or False?

Arthropods were able to move onto land because their ________ prevented dehydration and provided support.

What compounds were used in Miller and Urey's experiment to simulate the atmosphere of early Earth?

The fossil record indicates that about 600 million years ago, a wide variety of ________ animals had evolved in the oceans.

The species that paleoanthropologists believe may be the most direct ancestor to Homo sapiens is:

To survive successfully on land, plants needed to develop:

Organisms that have complex internal membranes are prokaryotic. True or False?

One advantage that enabled the seed plants to greatly surpass the ferns in colonizing the land was the evolution of:

The scenario of prebiotic evolution leading to the origin of life on Earth is plausible because:

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

The Continuity of Life: Cellular Reproduction

Patterns of Inheritance

Dna: the Molecule of Heredity

Gene Expression and Regulation

Biotechnology

Principles of Evolution

How Populations Evolve

The Origin of Species

Systematics: Seeking Order Amidst Diversity

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

How Do Ecosystems Work

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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