What two features formed North America in the Mesozoic Era?
The Rocky Mountains and an inland sea
100
What is the Cenozoic sometimes known as?
The Age of the Mammals
100
How did Pangaea form?
Tectonic plates brought all of the continents together
100
What happened to Earth's climate during the first three epochs of the Cenozoic Era?
The temperature decreased
200
What is the Early Paleozoic often called?
The Age of the Invertebrates
200
What period of the Mesozoic Era did Pangaea begin to split up?
The Triassic Period
200
What mammals existed during the Cenozoic Era?
Mega mammals
200
How did the Atlantic Ocean form?
All of the glaciers and ice caps melted
200
How is the relationship between eons and eras different than the relationship than the relationship between hours and minutes?
Eons are not divisions of time, while minutes are
300
What mountain range formed during the Paleozoic Era?
The Appalachian Mountains
300
What animals existed during the Mesozoic Era?
Mammals, reptiles, and dinosaurs
300
What portion of Earth's land was covered in ice at the peak of the Cenozoic Era?
1/3
300
What forms an inland sea?
Ocean water flooding a continent
300
What is true about rock layers?
Only younger rocks contain complex fossils
400
Which part of the Paleozoic Era did the Appalachian Mountains form?
Middle Paleozoic
400
What era do pine trees begin to appear?
The Mesozoic Era
400
During which Eon, Era, Period, and Epoch do you currently live in?
The Phanerozoic Eon, The Cenozoic Era, The Quartenary Period, and The Holocene Epoch
400
Reptiles evolved from an ancestor of amphibians that...
developed eggs with strong outer shells
400
What are some events that could cause a mass extinction?
Gas and dust from volcanoes, meteorite crashing into Earth, or the sudden increase in a particular gas in the atmosphere of the entire planet
500
What was the end of the Paleozoic signaled by?
A mass extinction of most land and sea animals
500
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500
What are the divisions of time in order from least to greatest?
Epoch, Period, Era, and Eon
500
How do land bridges contribute to the changes in a species?
Animals cross the land bridges to go from continent to continent which force them to either adapt or die
500
If a man brings insects with a disease to another continent and it kills plants, what helped keep those plants alive on original continent that they came from?