Question 1

The second major rise in oxygen in Earth's atmosphere around 580 Ma was caused by

Accepted Answer

A)  the radiation of multicellular photosynthetic organisms.
B)  the erosion of red beds.
C)  global volcanic activity.
D)  something that scientists are still uncertain about.

Question 2

How many major mass extinction events have taken place in the Phanerozoic eon?

Accepted Answer

A)  three
B)  six
C)  five
D)  one

Question 3

Halophiles are _____ with a tolerance for high______.

Accepted Answer

A)  thermophiles; salinity
B)  extremophiles; acidity
C)  acidophiles; temperature
D)  extremeophiles; salinity

Question 4

What are chemofossils?

Accepted Answer

A)  chemically treated fossil remains
B)  chemical remains of fossils
C)  minerals made by organisms
D)  organic molecules produced by microorganism that resist weathering

Question 5

Photosynthesis became an important metabolic process approximately _____ years ago.

Accepted Answer

A)  3) 5 billion
B)  2) 7 billion
C)  2) 5 billion
D)  1) 1 billion

Question 6

The marked rise in oxygen in Earth's atmosphere coincides with the first appearance of _________ in the rock record.

Accepted Answer

A)  banded iron formation
B)  red beds
C)  eukaryotic algae
D)  both B and C

Question 7

Microbes were the only organisms on Earth from 3.5 billion years ago to

Accepted Answer

A)  1 million years ago.
B)  1 billion years ago.
C)  2) 5 billion years ago.
D)  100 million years ago.

Question 8

Ecosystems are characterized by the exchange of _________ and ____________ between their organisms and their environments.

Accepted Answer

A)  energy; matter
B)  plants; animals
C)  fluids; solids
D)  minerals; rocks

Question 9

Of the following,humans are most related to

Accepted Answer

A)  cyano-bacteria.
B)  methano-bacterium.
C)  slime molds.
D)  halobacterium.

Question 10

________ is a mineral found on the surface of Mars that indicates that the surface waters were very acidic.

Accepted Answer

A)  Hematite
B)  Pyrite
C)  Jarosite
D)  Iron-oxide

Question 11

The pathway through which a chemical element or molecule moves between the biological and environmental components of an ecosystem is called the

Accepted Answer

A)  biogeochemical cycle.
B)  biomicrobial cycle.
C)  geometabolic cycle.
D)  geosynthesis cycle.

Question 12

Microbes live in

Accepted Answer

A)  air.
B)  rocks.
C)  soil.
D)  air,rocks,and soil.

Question 13

Ecosystems are composed of _________ and ____________ that function in a balanced manner.

Accepted Answer

A)  multicellular organisms; single-celled organisms
B)  plants; animals
C)  organisms; plants
D)  organisms; geologic components

Question 14

Sedimentary features that form from the interaction of microbes with their environment are called

Accepted Answer

A)  nodules.
B)  stromatolites.
C)  branching columns.
D)  laminations.

Exam 11: Geobiology: Life Interacts With Earth

Ecosystems are composed of _ and ____ that function in a balanced manner.

Correct Answer
verified

Of the following,humans are most related to

Correct Answer
verified

What are chemofossils?

Correct Answer
verified

Microbes were the only organisms on Earth from 3.5 billion years ago to

Correct Answer
verified

Ecosystems are characterized by the exchange of _ and ____ between their organisms and their environments.

Correct Answer
verified

The marked rise in oxygen in Earth's atmosphere coincides with the first appearance of _________ in the rock record.

Correct Answer
verified

The pathway through which a chemical element or molecule moves between the biological and environmental components of an ecosystem is called the

Correct Answer
verified

How many major mass extinction events have taken place in the Phanerozoic eon?

Correct Answer
verified

Sedimentary features that form from the interaction of microbes with their environment are called

Correct Answer
verified

The second major rise in oxygen in Earth's atmosphere around 580 Ma was caused by

Correct Answer
verified

________ is a mineral found on the surface of Mars that indicates that the surface waters were very acidic.

Correct Answer
verified

Halophiles are _ with a tolerance for high__.

Correct Answer
verified

Photosynthesis became an important metabolic process approximately _____ years ago.

Correct Answer
verified

Microbes live in

Correct Answer
verified

Exam 11: Geobiology: Life Interacts With Earth

Ecosystems are composed of _________ and ____________ that function in a balanced manner.

Correct AnswerverifiedShow Answer

Of the following,humans are most related to

Correct AnswerverifiedShow Answer

What are chemofossils?

Correct AnswerverifiedShow Answer

Microbes were the only organisms on Earth from 3.5 billion years ago to

Correct AnswerverifiedShow Answer

Ecosystems are characterized by the exchange of _________ and ____________ between their organisms and their environments.

Correct AnswerverifiedShow Answer

The marked rise in oxygen in Earth's atmosphere coincides with the first appearance of _________ in the rock record.

Correct AnswerverifiedShow Answer

The pathway through which a chemical element or molecule moves between the biological and environmental components of an ecosystem is called the

Correct AnswerverifiedShow Answer

How many major mass extinction events have taken place in the Phanerozoic eon?

Correct AnswerverifiedShow Answer

Sedimentary features that form from the interaction of microbes with their environment are called

Correct AnswerverifiedShow Answer

The second major rise in oxygen in Earth's atmosphere around 580 Ma was caused by

Correct AnswerverifiedShow Answer

________ is a mineral found on the surface of Mars that indicates that the surface waters were very acidic.

Correct AnswerverifiedShow Answer

Halophiles are _____ with a tolerance for high______.

Correct AnswerverifiedShow Answer

Photosynthesis became an important metabolic process approximately _____ years ago.

Correct AnswerverifiedShow Answer

Microbes live in

Correct AnswerverifiedShow Answer

Ecosystems are composed of _ and ____ that function in a balanced manner.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Ecosystems are characterized by the exchange of _ and ____ between their organisms and their environments.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Halophiles are _ with a tolerance for high__.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified