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This timeline correctly shows the
order of time periods in the
Mesozoic Era.
A 100
True
A 100
Dinosaurs were the only
organisms on Earth when
they existed.
A 200
False; were not
A 200
Reptiles can reproduce on land,
while amphibians need water to
reproduce.
A 300
True
A 300
Coal was formed by plant
material in oxygen-rich
environments.
A 400
False; -poor
A 400
When Pangaea broke apart, the
western margin of North
America was characterized by
a(n) decrease in deformation.
A 500
False;increase
A 500
Scientists know that a
meteorite impact caused
dinosaurs to become extinct.
B 100
False; hypothesize
B 100
The land forms shown in the picture that
connect South America with Antarctica
and Antarctica with Australia and
provide a migration route for animals are
called land bridges.
B 200
True
B 200
DAILY
Place A Wager
DOUBLE
B 300
The first mammals, birds, and
flowering plants arose during the
Cenozoic, which was a time of
many biological firsts.
B 300
False; Mesozoic
B 300
The largest mass extinction in
Earth’s history occurred at the end
of the Paleozoic era.
B 400
True
B 400
Rare fossils of multicellular lifeforms in Precambrian rock
appear to be exactly the same as
organisms on Earth today.
B 500
False; different than
B 500
DAILY
Place A Wager
DOUBLE
C 100
How many instances of mass extinction do
scientists believe are shown in the fossil
record?
a. 1
b. 3
c. 5
d. hundreds
C 100
How many instances of mass extinction do
scientists believe are shown in the fossil
record?
a. 1
b. 3
c. 5
C 100
Which event could cause a mass
extinction?
a. gas and dust from volcanoes
b. meteorite crashing into Earth
c. the sudden increase in a particular gas
in the atmosphere of the entire planet
d. all of the above
C 200
Which event could cause a mass
extinction?
a. gas and dust from volcanoes
b. meteorite crashing into Earth
c. the sudden increase in a particular gas
in the atmosphere of the entire planet
d. all of the above
C 200
Why do scientists hypothesize that either
volcanic explosions or a meteorite impact
led to the Permian mass extinction?
a. Both events would leave a layer of
iridium around the world.
b. Both would eject ash and rock into the
atmosphere, reducing temperatures.
c. Organisms that did not change survived.
d. Both would increase the average
temperature on Earth.
C 300
Why do scientists hypothesize that either
volcanic explosions or a meteorite impact
led to the Permian mass extinction?
a. Both events would leave a layer of
iridium around the world.
b. Both would eject ash and rock into the
atmosphere, reducing temperatures.
C 300
Today, some scientists think that ____.
a. birds evolved from dinosaurs
b. dinosaurs evolved from fish
c. birds evolved from amphibians
d. both a and b
C 400
Today, some scientists think that ____.
a. birds evolved from dinosaurs
C 400
What caused the glacial grooves?
a. harder ice chunks within glaciers
b. melting water rushing away from glaciers
c. rocks carried by glaciers
d. both a and c
C 500
What caused the glacial grooves?
a. harder ice chunks within glaciers
b. melting water rushing away from glaciers
c. rocks carried by glaciers
d. both a and c
C 500
Which shows the divisions of the
geologic time line from least to
greatest?
a. epoch, period, eon, era
b. epoch, period, era, eon
c. eon, era, period, epoch
d. epoch, era, period, eon
D 100
Which shows the divisions of the
geologic time line from least to
greatest?
a. epoch, period, eon, era
b. epoch, period, era, eon
D 100
Evolution occurs when ________.
a. species adapt to a change in the
environment
b. a species becomes extinct
c. the environment remains the same
d. all of the above
D 200
Evolution occurs when ________.
a. species adapt to a change in the
environment
D 200
There were so many animals without
backbones in the Early Paleozoic that it
is often called ________.
a. the boneless period
b. the age of the invertebrates
c. the age of the vertebrates
d. the vertebrate era
D 300
There were so many animals without
backbones in the Early Paleozoic that it
is often called ________.
a. the boneless period
b. the age of the invertebrates
D 300
DAILY
Place A Wager
DOUBLE
D 400
The shaded area of this graph
could be used to represent________.
a. the portion of Earth’s land covered with ice at the
peak of the Cenozoic ice ages
b. the portion of Earth’s land that was a part of
Pangaea
c. the portion of Earth’s history during which humans
have existed
d. the portion of Earth’s history during which tectonic
forces acted on Earth’s surface
D 400
The shaded area of this graph
could be used to represent________.
a. the portion of Earth’s land covered with ice at the
peak of the Cenozoic ice ages
D 400
When do pine trees begin to appear in
the fossil record?
a. the Paleozoic era
b. the Mesozoic era
c. the Cenozoic era
d. the Precambrian era
D 500
When do pine trees begin to appear in
the fossil record?
a. the Paleozoic era
b. the Mesozoic era
D 500
Organisms become __________
when they cannot adapt to
environmental changes.
E 100
extinct
E 100
DAILY
Place A Wager
DOUBLE
E 200
The Paleozoic, Mesozoic, and
Cenozoic eras are all divisions of
the __________ eon.
E 200
Phanerozoic
E 200
The periods of the Mesozoic era
from late to early are __________,
___________, and ___________.
E 300
Cretaceous, Jurassic, Triassic
E 300
Pangaea split into __________ and
________________.
E 400
Laurasia; Gondwanaland
E 400
Fossil evidence shows that during
the largest mass extinction _____
percent of marine-life forms became
extinct.
E 500
95
E 500
The oldest fossil remains of human
ancestors have been found on the
continent of ________.
F 100
Africa
F 100
The ___________________ explosion
was marked by great diversity of life,
including the development of animals
with skeletons.
F 200
Cambrian
F 200
Grass first appeared in the
_________ era.
F 300
Cenozoic
F 300
The Late _________________
was a time of active mountain
building.
F 400
Paleozoic
F 400
Many types of fish in the Middle
Paleozoic were heavily _________.
F 500
armored
F 500
The Final Jeopardy Category is:
Geologic Time
Please record your wager.
Click on screen to begin
List the letters representing the following pictures
in chronological order from earliest to latest.
B
A
C
D
Click on screen to continue
D,C,B,A
Click on screen to continue
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