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50 questions
Scientists chose where units of geologic time began and ended based on major changes in flora (plants) & fauna (animals).
True
False
Which type of fossil would look just like an actual body part of a once-living thing?
cast
trace
mineral
footprint
Greatest mass extinction of all time - ended the Paleozoic era
extinction
Paleozoic era
geologic time scale
Permian extinction
A particular segment in geologic history (for example Paleozoic, Mesozoic, Cenozoic)
Cenozoic Era
Period
Eon
Era
"Age of mammals" that began 65 million years ago to the present; the era of modern life
Cenozoic Era
Mesozoic Era
epoch
period
the trace or remains of an organism that lived long ago, most commonly preserved in sedimentary rock
fossil record
geologic time scale
species
fossil
A particular segment in geologic history (for example, Cambrian, Devonian, Jurassic, Tertiary)
epoch
era
period
Cenozoic era
a historical sequence of life indicated by fossils found in layers of Earth's crust
fossil
geologic time scale
species
fossil record
What is the eon, era, period, and epoch we are living in?
phanerozoic, quaternary, holocene, and cenozoic
phanerozoic, cenozoic, quaternary, and holocene
quaternary, cenozoic, holocene, and phanerozoic
quaternary, cenozoic, phanerozoic, and holocene
These were the dominant species that existed during the Paleozoic era:
Dinosaurs
marine life
apes
Ancient aliens
This event marked the end of the Age of the Reptiles during the __________ era.
asteroid impact - mesozoic
supervolcano - jurassic
supervolcano - cenozoic
asteroid impact - jurassic
Literally means "turn to stone"
frozen areas
hard parts
petrification
amber
Which extinction is considered the largest mass extinction in Earth's history? Basically 96% of all species on Earth disappeared.
Ordovician Extinction
Devonian Extinction
Permian Extinction
Triassic Extinction
Cretaceous Extinction
Which mass extinction included the extinction of the dinosaurs?
Ordovician Extinction
Devonian Extinction
Permian Extinction
Triassic Extinction
Cretaceous Extinction
When several species evolve from a single ancestor (i.e. Darwin's finches)
Adaptive Radiation
Sexual Selection
Coevolution
Convergent Evolution
How do fossils form
an insect becomes trapped in amber
an entire organism becomes frozen in ice.
a dead organism becomes buried in sediment
All of the above
Explain why there are no fossils of many early forms of life
Early forms of life where too soft to form fossils
Early forms of life were very, very small so finding fossilised remains is very difficult.
Most dead organisms do not form fossils they decay
All of the above
Lily sees a skeleton of a dinosaur at a museum. What is true about the bones that make up the skeleton?
The bones are made up of minerals.
The bones are those of the dinosaur itself.
The bones were formed from mud that hardened.
The bones are made up of amber.
What happens when a group of animals become extinct?
All of its members have died.
Only a few of its members are still living.
The animals can no longer lay eggs.
All of its members move to another place.
Which of the following is the correct sequence of geologic time from smallest to largest unit?
era, eon, period, and epoch
epoch, eon, era, and period
epoch, period, era, and eon
era, eon, epoch, and period
What proceeded the asteroid impact about 65 million years ago?
nuclear winter and ice age
more dinosaurs
warm temperatures
lower sea levels
Man made extinctions include all of the following except:
global cooling
deforestation
over-fishing
pollution
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