Question 1

The appearance of air breathing organisms was most dependent upon:

Accepted Answer

A)  the accumulation of methane gas in the atmosphere. 
B)  the survival of cyanobacteria on the primitive earth. 
C)  the accumulation of ozone in the upper atmosphere. 
D)  the survival of organisms around undersea thermal vents. 
E)  the absence of predators on the first land masses. 
A)  the accumulation of methane gas in the atmosphere. 
B)  the survival of cyanobacteria on the primitive earth. 
C)  the accumulation of ozone in the upper atmosphere. 
D)  the survival of organisms around undersea thermal vents. 
E)  the absence of predators on the first land masses.

Question 2

Fossil stromatolites are evidence that cells exited 3.5 million years ago.
_____________

Accepted Answer

A) True 
 B)False

Question 3

The first cells were probably:

Accepted Answer

A)  autotrophic aerobes. 
B)  heterotrophic aerobes. 
C)  eukaryotic anaerobes. 
D)  autotrophic anaerobes. 
E)  heterotrophic anaerobes. 
A)  autotrophic aerobes. 
B)  heterotrophic aerobes. 
C)  eukaryotic anaerobes. 
D)  autotrophic anaerobes. 
E)  heterotrophic anaerobes.

Question 4

Which of the following is not one of the requirements that must have existed for the chemical evolution of life on Earth to have occurred?

Accepted Answer

A)  a source of energy 
B)  availability of chemical building blocks 
C)  oxygen (O2) 
D)  time 
E)  carbon dioxide 
A)  a source of energy 
B)  availability of chemical building blocks 
C)  oxygen (O2) 
D)  time 
E)  carbon dioxide

Question 5

During the __________ epoch, the mammals experienced an explosive adaptive radiation.

Accepted Answer

A)  Holocene 
B)  Paleocene 
C)  Pleistocene 
D)  Eocene 
E)  Pliocene 
A)  Holocene 
B)  Paleocene 
C)  Pleistocene 
D)  Eocene 
E)  Pliocene

Question 6

Describe the distinguishing organisms and major biological events associated with the following geological time units.
A.
Precambrian time
B.
Paleozoic era
C.
Mesozoic era
D.
Cenozoic era

Accepted Answer

Concepts to Consider: Precambrian--bacte

Question 7

The concept that simple organic molecules could form spontaneously from simpler raw materials was first proposed by:

Accepted Answer

A)  Miller and Urey. 
B)  Charles Darwin. 
C)  Thomas Malthus. 
D)  Watson and Crick. 
E)  Oparin and Haldane. 
A)  Miller and Urey. 
B)  Charles Darwin. 
C)  Thomas Malthus. 
D)  Watson and Crick. 
E)  Oparin and Haldane.

Question 8

Multicellular eukaryotes arose about:

Accepted Answer

A)  3.8 billion years ago. 
B)  2 billion years ago. 
C)  1.3 billion years ago. 
D)  600 million years ago. 
E)  250 million years ago. 
A)  3.8 billion years ago. 
B)  2 billion years ago. 
C)  1.3 billion years ago. 
D)  600 million years ago. 
E)  250 million years ago.

Question 9

MATCHING
Match the period with the biological events
a.Cambrian 542mya
d.Jurassic 200mya
b.Carboniferous 359 mya
e.Quaternary 2.6 mya
c.Devonian 488 mya
-Gymnosperms common, large dinosaurs

Accepted Answer

The answer of MATCHING
Match the period with the biological events
a.Cambrian...

Exam 21: The Origin and Evolutionary History of Life

The appearance of air breathing organisms was most dependent upon:

Fossil stromatolites are evidence that cells exited 3.5 million years ago. _____________

The first cells were probably:

Which of the following is not one of the requirements that must have existed for the chemical evolution of life on Earth to have occurred?

During the __________ epoch, the mammals experienced an explosive adaptive radiation.

Describe the distinguishing organisms and major biological events associated with the following geological time units. A. Precambrian time B. Paleozoic era C. Mesozoic era D. Cenozoic era

The concept that simple organic molecules could form spontaneously from simpler raw materials was first proposed by:

Multicellular eukaryotes arose about:

MATCHING Match the period with the biological events a.Cambrian 542mya d.Jurassic 200mya b.Carboniferous 359 mya e.Quaternary 2.6 mya c.Devonian 488 mya -Gymnosperms common, large dinosaurs

A View of Life

Atoms and Molecules: the Chemical Basis of Life

The Chemistry of Life: Organic Compounds

Organization of the Cell

Biological Membranes

Cell Communication

Energy and Metabolism

How Cells Make Atp: Energy-Releasing Pathways

Photosynthesis: Capturing Light Energy

Chromosomes, Mitosis, and Meiosis

The Basic Principles of Heredity

Dna: the Carrier of Genetic Information

Gene Expression

Gene Regulation

Dna Technology and Genomics

Human Genetics and the Human Genome

Developmental Genetics

Introduction to Darwinian Evolution

Evolutionary Change in Populations

Speciation and Macroevolution

The Evolution of Primates

Understanding Diversity: Systematics

Viruses and Subviral Agents

Bacteria and Archaea

Protists

Seedless Plants

Seed Plants

The Fungi

An Introduction to Animal Diversity

Sponges, Cnidarians, Ctenophores, and Protostomes

The Deuterostomes

Plant Structure, Growth, and Development

Leaf Structure and Function

Stem Structure and Transport

Roots and Mineral Nutrition

Reproduction in Flowering Plants

Plant Developmental Responses to External and Internal Signals

Animal Structure and Function: an Introduction

Protection, Support, and Movement

Neural Signaling

Neural Regulation

Sensory Systems

Internal Transport

The Immune System: Internal Defense

Gas Exchange

Processing Food and Nutrition

Osmoregulation and Disposal of Metabolic Wastes

Endocrine Regulation

Reproduction

Animal Development

Animal Behavior

Introduction to Ecology: Population Ecology

Community Ecology

Ecosystems and the Biosphere

Ecology and the Geography of Life

Biological Diversity and Conservation Biology

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