Question 1

All multicellular organisms are

Accepted Answer

A)  Bacteria 
B)  Prokaryotes 
C)  Archaea 
D)  Eukarya 
A)  Bacteria 
B)  Prokaryotes 
C)  Archaea 
D)  Eukarya

Question 2

The fossil fuel deposits we use today are the remains of organisms from which period in Earth's history?

Accepted Answer

A)  The Cretaceous Period 
B)  The Carboniferous Period 
C)  The Cambrian Period 
D)  The Archaean Eon 
A)  The Cretaceous Period 
B)  The Carboniferous Period 
C)  The Cambrian Period 
D)  The Archaean Eon

Question 3

How many mass extinctions have occurred over the last 500 million years?

Accepted Answer

A)  5 
B)  1 
C)  4 
D)  3 
A)  5 
B)  1 
C)  4 
D)  3

Question 4

The "top-down" approach to creating artificial life starts

Accepted Answer

A)  in the laboratory with the raw ingredients of life, and seeks to reproduce life in much the same way that it presumably originated billions of years ago 
B)  with a complex organism and then removes cells that are not absolutely necessary 
C)  with existing organisms and genetically strips them down, then tries to rebuild them into new species 
D)  with animal cells and attempts to clone them 
A)  in the laboratory with the raw ingredients of life, and seeks to reproduce life in much the same way that it presumably originated billions of years ago 
B)  with a complex organism and then removes cells that are not absolutely necessary 
C)  with existing organisms and genetically strips them down, then tries to rebuild them into new species 
D)  with animal cells and attempts to clone them

Question 5

The most severe mass extinction during the past 500 million years occurred at the end of which geological period?

Accepted Answer

A)  Devonian 
B)  Triassic 
C)  Permian 
D)  Cretaceous 
A)  Devonian 
B)  Triassic 
C)  Permian 
D)  Cretaceous

Question 6

Present-day living organisms closest to the root of the "Tree of Life" are

Accepted Answer

A)  aerobic bacteria 
B)  anerobic bacteria 
C)  archaea living in both extreme and non-extreme environments 
D)  eukarya similar to ameoba 
A)  aerobic bacteria 
B)  anerobic bacteria 
C)  archaea living in both extreme and non-extreme environments 
D)  eukarya similar to ameoba

Question 7

Sources of organic molecules on the surface of the early Earth included

Accepted Answer

A)  chemical reactions near the ocean surface 
B)  chemical reactions near deep-sea vents 
C)  material from space 
D)  all of the above 
A)  chemical reactions near the ocean surface 
B)  chemical reactions near deep-sea vents 
C)  material from space 
D)  all of the above

Question 8

Why do we think that DNA was probably NOT the first self-replicating molecule?

Accepted Answer

A)  it is able to replicate using carbohydrates rather than proteins 
B)  it is far to complex to have been the first self-replicating molecule 
C)  it is able to replicate at high temperatures found near deep ocean vents 
D)  laboratory have shown that it is able to catalyze its own replication 
A)  it is able to replicate using carbohydrates rather than proteins 
B)  it is far to complex to have been the first self-replicating molecule 
C)  it is able to replicate at high temperatures found near deep ocean vents 
D)  laboratory have shown that it is able to catalyze its own replication

Question 9

The successful creation of the first artificial organism in 2010 by the J. Craig Venter Institute used a

Accepted Answer

A)  Miller-Urey approach 
B)  top-down approach 
C)  bare-bottom approach 
D)  bottom-up approach 
A)  Miller-Urey approach 
B)  top-down approach 
C)  bare-bottom approach 
D)  bottom-up approach

Question 10

In the original Miller-Urey experiment it was assumed that carbon and nitrogen in the early atmosphere were present as

Accepted Answer

A)  carbon dioxide (CO2) and nitrogen (N2) 
B)  carbonates (CO3-) and nitrates (NO3-) 
C)  methane (CH4) and ammonia (NH3) 
D)  carbon and nitrogen atoms 
A)  carbon dioxide (CO2) and nitrogen (N2) 
B)  carbonates (CO3-) and nitrates (NO3-) 
C)  methane (CH4) and ammonia (NH3) 
D)  carbon and nitrogen atoms

All multicellular organisms are

The fossil fuel deposits we use today are the remains of organisms from which period in Earth's history?

How many mass extinctions have occurred over the last 500 million years?

The "top-down" approach to creating artificial life starts

The most severe mass extinction during the past 500 million years occurred at the end of which geological period?

Present-day living organisms closest to the root of the "Tree of Life" are

Sources of organic molecules on the surface of the early Earth included

Why do we think that DNA was probably NOT the first self-replicating molecule?

The successful creation of the first artificial organism in 2010 by the J. Craig Venter Institute used a

In the original Miller-Urey experiment it was assumed that carbon and nitrogen in the early atmosphere were present as

The Science of Life in the Universe

The Universal Context of Life

The Habitability of Earth

The Nature of Life on Earth

Searching for Life in Our Solar System

Mars

Life on Jovian Moons

The Nature and Evolution of Habitability

Habitability Outside the Solar System

The Search for Extraterrestrial Intelligence

Interstellar Travel and the Fermi Paradox

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Exam 6: The Origin and Evolution of Life on Earth

All multicellular organisms are

The fossil fuel deposits we use today are the remains of organisms from which period in Earth's history?

How many mass extinctions have occurred over the last 500 million years?

The "top-down" approach to creating artificial life starts

The most severe mass extinction during the past 500 million years occurred at the end of which geological period?

Present-day living organisms closest to the root of the "Tree of Life" are

Sources of organic molecules on the surface of the early Earth included

Why do we think that DNA was probably NOT the first self-replicating molecule?

The successful creation of the first artificial organism in 2010 by the J. Craig Venter Institute used a

In the original Miller-Urey experiment it was assumed that carbon and nitrogen in the early atmosphere were present as

The Science of Life in the Universe

The Universal Context of Life

The Habitability of Earth

The Nature of Life on Earth

Searching for Life in Our Solar System

Mars

Life on Jovian Moons

The Nature and Evolution of Habitability

Habitability Outside the Solar System

The Search for Extraterrestrial Intelligence

Interstellar Travel and the Fermi Paradox

Filters