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