Question 1

Which era is sometimes called the "age of dinosaurs"?

Accepted Answer

A)  Cretaceous
B)  Pleistocene
C)  Cenozoic
D)  Mesozoic
E)  none of the above D

Question 2

Primitive organisms, called_________ , reproduce asexually and contain cells that lack organized nuclei.

Accepted Answer

prokaryotes

Question 3

Following the mass extinction at the end of the Mesozoic Era, two groups of mammals, the_________and placentals, further evolved and diversified.

Accepted Answer

marsupials

Question 4

Most of Earth's iron ore occurs in middle_________ rocks.

Accepted Answer

A)  Precambrian
B)  Cenozoic
C)  Mesozoic
D)  Paleozoic

Question 5

The late_________ Era extinction was the greatest of at least five mass extinctions to occur over the past 600 million years.

Accepted Answer

The answer of The late_________ Era extinction was the greatest...

Question 6

The most common Precambrian fossils are_________ , layered mounds of calcium carbonate.

Accepted Answer

A)  trilobites
B)  prokaryotes
C)  stromatolites
D)  chert
E)  none of the above

Question 7

The most economically important resource in Cenozoic strata of the Gulf Coast is __________ .

Accepted Answer

The answer of The most economically important resource in Cenozoic...

Question 8

Briefly discuss the origin of Earth's atmosphere and oceans. Are the two related to one another? Also, has the atmosphere remained constant over time or has it changed? And if so then how has it changed?

Accepted Answer

The answer of Briefly discuss the origin of Earth's atmosphere...

Question 9

Most _________rocks are devoid of fossils, which hinders correlation of rocks.

Accepted Answer

A)  Mesozoic and Cenozoic
B)  Paleozoic
C)  Precambrian
D)  Mesozoic
E)  Cenozoic

Question 10

Abundant fossil evidence did not appear in the geologic record until about_________ .

Accepted Answer

A)  300 million years ago
B)  550 million years ago
C)  5 billion years ago
D)  3 billion years ago
E)  6 million years ago

Question 11

The supercontinent of Pangaea began to break up during the_________ Era.

Accepted Answer

A)  Paleozoic
B)  Cenozoic
C)  Precambrian
D)  Mesozoic

Question 12

The time of the great extinction that took place at the end of the Mesozoic Era is called the_________or KT boundary.

Accepted Answer

The answer of The time of the great extinction that...

Question 13

Which period is known as the "age of fishes"?

Accepted Answer

A)  Pennsylvanian
B)  Permian
C)  Devonian
D)  Jurassic
E)  Mississippian

Question 14

The waste gas released by plants as they synthesize food sugars from carbon dioxide and water is _________.

Accepted Answer

A)  methane
B)  carbon dioxide
C)  oxygen
D)  nitrogen
E)  none of the above

Question 15

The "ancient age" time period is the _________Eon.

Accepted Answer

A)  Cambrian
B)  Cenozoic
C)  Permian
D)  none of the above

Question 16

The process in which plants use light energy to synthesize food sugars from carbon dioxide is called _________.

Accepted Answer

A)  oxidation
B)  photosynthesis
C)  hydration
D)  fusion
E)  none of the above

Question 17

The cells of these primitive organisms lack organized nuclei and they reproduce asexually.

Accepted Answer

A)  brachiopods
B)  trilobites
C)  eukaryotes
D)  prokaryotes
E)  none of the above

Question 18

The_________ means "the sun in the making."

Accepted Answer

A)  presun
B)  sol
C)  protosun
D)  solar disk
E)  nebular sun

Question 19

By the close of the Paleozoic, all the continents had fused into the single super continent of_________ .

Accepted Answer

A)  Laurasia
B)  Appalachia
C)  Pangaea
D)  Gondwanaland
E)  Europa

Question 20

The_________ period is sometimes called the "golden age of trilobites."

Accepted Answer

A)  Pennsylvanian
B)  Triassic
C)  Silurian
D)  Cambrian
E)  Devonian

Exam 19: Earths Evolution Through Geologic Time