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Test Questions 1
Test Questions 2
Test Questions 3
Test Questions 4
Test Questions 5
100
What is the names of the 4 Eras? In order
Precambrian, Paleozoic, Mesozoic, Cenozoic
100
During what eras did mass extinction occur?
At the end of the Cenozoic era and at the end of the Paleozoic era.
100
What theory explains how the dinosaurs went extinct?
Meteorite Theory
100
What important events happen in the Precambrian era?
Single cell organism were developed and there were 5/3 more complex multi cell organism.
100
As time passes, organisms
get more complex
200
What information do fossils give us about Earths History?
Fossil records provide evident about the history of life and also it shows how organism changed overtime (Evolved)
200
During what era did the Cambrian explosion occur?
Paleozoic Era
200
How long ago and in what era did modern human appear?
200,000 years ago and in the Cenozoic Era
200
What important event happen during the Paleozoic Era?
We got (seed plants) we also had the Cambrian explosion in this era and in the first half we got worms sea stars then in the middle we got 4 legged animals and the last half reptiles began living on land and finally there was the largest mass extinction 90% of marine life and 70% of land species
200
What Era do we currently live in?
Cenozoic Era
300
How does the complexity of organisms change over time?
Natural Selection is the reason why complexity of organism change over time.
300
How much of Earths history does the Precambrian Era consist of?
Makes up 87% of the Earths history
300
What is Evolution?
Evolution is the gradual change in living things over long periods of time.
300
What important events happen in the Mesozoic Era?
organism and geology change a lot there were 3 periods Triassic, Jurassic, Cretaceous in the triassic mouse like mammal appear then in the Jurassic modern birds and in the cretaceous mass extol of ding and 2/3+ of all species there was also the meteorite theory also break up of Pangea change place species lived
300
How long ago did human appear?
200,000 years ago
400
What are eras divided into?
Periods
400
When did single celled (unicellular) organisms start?
3.5 billion years ago in the Pre-Cambrian period
400
What is Natural Selection?
Natural Selection itself is a natural process resulting in the evolution of organisms best adapted to the environment.
400
What important events happen in the cenozoic era?
mammals flourished primates appear early and modern human species was in this era.
400
Change in living things over long periods of time
Evolution
500
What are the periods of the Mesozoic era?
Triassic, Jurassic, Creataceous.
500
When did multicellular organisms start?
Paleozoic Era about 600 million years ago
500
What is Adaptive advantage?
Having a certain aspect that alows you to ajust to a certain area or live on
500
In what era did the Cambrian Explosion take place?
Paleozoic era
500
What information do fossil give us about the past?
How organism lived in the past, What the climate was like in the past,