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Geological Time
Test Description: Chapters 12 and 13
Instructions: Answer all questions to get your test result.
1) What happened to all the continents by the close of the Paleozoic era
A
They formed Gondwanda
B
They split in half
C
They fused into Pangea
D
The moved toward the poles
2) In early Paleozoic era, life was restricted to the
A
seas
B
air
C
islands
D
continents
3) What improtant event in animal evolution marks the beginning of the Cambrian eon
A
the ability to fly
B
the appearance of hard parts
C
the ability to swim
D
the appearance of fossils
4) What event may have triggered the great Paleozoic extinctions?
A
change in Earth's orbit
B
climatic change
C
heightened solar activity
D
meteorite strike
5) What animals dominated the Mesozoic era
A
dinosaurs
B
amphibian
C
fish
D
mammals
6) One group of reptiles, characterized by the fossil Archaipteryx, led to the evolution of __________.
A
mammals
B
cephalopods
C
dinosaurs
D
birds
7) What likely contributed to the extinction tht marks the end of the Mesozoic Era?
A
global warming
B
none of the answers are correct
C
a meteoric collision
D
an ice age
8) How are mammals distinct from reptiles
A
Mammals have body hair
B
Mammals lay eggs
C
Mammals are coldblooded
D
Mammals have lungs
9) What principle states that physical, biological and chemical processes we observe today have also operated in the geologic past
A
unconformity
B
uniformitarianism
C
horizontality
D
cross cutting
10) Fossils rarely preserve the _________ parts of animals because scavengers often eat them and bacteria decompose them
A
soft
B
hard
C
dorsal
D
bone
*select an answer for all questions
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