Question 1

Immediately after the Permian extinction event, the carbon dioxide and methane released by volcanism caused the Earth to

Accepted Answer

A)  initiate a snowball Earth phase 
B)  start an ice age 
C)  begin a period of intense global warming 
D)  completely change the composition of its atmosphere 
A)  initiate a snowball Earth phase 
B)  start an ice age 
C)  begin a period of intense global warming 
D)  completely change the composition of its atmosphere

Question 2

Microfossils are

Accepted Answer

A)  fossilized microbes 
B)  the remains of very small dinosaurs 
C)  the remains of the very first multicellular organisms 
D)  the remains of the tiny organisms which were first to colonize onto land 
A)  fossilized microbes 
B)  the remains of very small dinosaurs 
C)  the remains of the very first multicellular organisms 
D)  the remains of the tiny organisms which were first to colonize onto land

Question 3

The first plants probably evolved from

Accepted Answer

A)  plankton 
B)  algae 
C)  corals 
D)  seaweed 
A)  plankton 
B)  algae 
C)  corals 
D)  seaweed

Question 4

The very first living organisms on the Earth were probably

Accepted Answer

A)  chemoheterotrophs 
B)  photoautotrophs 
C)  photoheterotrophs 
D)  chemoautotrophs 
A)  chemoheterotrophs 
B)  photoautotrophs 
C)  photoheterotrophs 
D)  chemoautotrophs

Question 5

Why do we believe the Cambrian explosion occurred so suddenly?

Accepted Answer

A)  oxygen concentrations reached critical levels necessary to support more complex life 
B)  organisms became sufficiently complex that more diversity became possible 
C)  climate change due the end of the last snowball Earth phase 
D)  all of these 
A)  oxygen concentrations reached critical levels necessary to support more complex life 
B)  organisms became sufficiently complex that more diversity became possible 
C)  climate change due the end of the last snowball Earth phase 
D)  all of these

Question 6

The relationship between organelles and their host cells can best be described as

Accepted Answer

A)  viral 
B)  sexual 
C)  symbiotic 
D)  parasitic 
A)  viral 
B)  sexual 
C)  symbiotic 
D)  parasitic

Question 7

Approximately how long ago did the dinosaurs suddenly become extinct?

Accepted Answer

A)  6 million years ago 
B)  65 million years ago 
C)  245 million years ago 
D)  10,000 years ago 
A)  6 million years ago 
B)  65 million years ago 
C)  245 million years ago 
D)  10,000 years ago

Question 8

Most meteorites from the inner solar system originate from

Accepted Answer

A)  the Moon 
B)  Mars 
C)  Mercury 
D)  Venus 
A)  the Moon 
B)  Mars 
C)  Mercury 
D)  Venus

Question 9

Current geological evidence suggests that life

Accepted Answer

A)  took billions of years to appear 
B)  appeared as soon as the Earth formed 
C)  appeared quite early in Earth's history 
D)  appeared relatively recently in Earth's history 
A)  took billions of years to appear 
B)  appeared as soon as the Earth formed 
C)  appeared quite early in Earth's history 
D)  appeared relatively recently in Earth's history

Question 10

One theory for the origin of life suggests that the earth and Life were created by some omnipotent being. This is referred to as

Accepted Answer

A)  panspermia 
B)  intelligent design 
C)  naturism 
D)  chemical evolution 
A)  panspermia 
B)  intelligent design 
C)  naturism 
D)  chemical evolution

Immediately after the Permian extinction event, the carbon dioxide and methane released by volcanism caused the Earth to

Microfossils are

The first plants probably evolved from

The very first living organisms on the Earth were probably

Why do we believe the Cambrian explosion occurred so suddenly?

The relationship between organelles and their host cells can best be described as

Approximately how long ago did the dinosaurs suddenly become extinct?

Most meteorites from the inner solar system originate from

Current geological evidence suggests that life

One theory for the origin of life suggests that the earth and Life were created by some omnipotent being. This is referred to as

A Universe of Life

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

Extrasolar Planets: Their Nature and Potential Habitability

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

Immediately after the Permian extinction event, the carbon dioxide and methane released by volcanism caused the Earth to

Microfossils are

The first plants probably evolved from

The very first living organisms on the Earth were probably

Why do we believe the Cambrian explosion occurred so suddenly?

The relationship between organelles and their host cells can best be described as

Approximately how long ago did the dinosaurs suddenly become extinct?

Most meteorites from the inner solar system originate from

Current geological evidence suggests that life

One theory for the origin of life suggests that the earth and Life were created by some omnipotent being. This is referred to as

A Universe of Life

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

Extrasolar Planets: Their Nature and Potential Habitability

The Search for Extraterrestrial Intelligence

Interstellar Travel and the Fermi Paradox

Filters