Evolution
Natural Selection
Geology
Earth History
Grab Bag
100
This is the process of organisms slowly acquiring adaptations over time
What is evolution
100
When a population becomes divided, like by a new river, we say they have been ____________.
What is isolated
100
When looking at rock layers, the oldest rocks are on the top/bottom.
What is bottom
100
We are in this era
What is the cenozoic
100
This is the type of scientist that studies fossils
What is a paleontologist
200
Species with more ___________ ______________ have a better chance of surviving changes in their environment
What is genetic variation
200
After a group is isolated, they begin to develop different _______________________ than the original group.
What is adaptations/traits
200
Wegener thought all the continents looked like they fit together like __________ ___ __ ______________.
What is pieces of a puzzle
200
Humans first appeared during this era
What is the Cenozoic
200
This animal shares the most DNA with Humans - well over 90%
What is the chimpanzee
300
The fossil record, similarities in body structures, DNA and embryos are all examples of this
What is evidence of evolution
300
After being isolated and developing different traits, eventually the isolated group is so different we call them a different ______________.
What is species
300
Geologists use the term ______________ ________________ to describe how the surface of the earth is moving and changing.
What is plate tectonics
300
Cells first appeared during this era
What is the precambrian
300
Preserved remains used to trace the evolution of species are known as this
What are fossils
400
When organisms are competing for limited resources, only the ______________ can survive to live, grow and reproduce.
What is strongest
400
Traits are more likely to be passed on if they help an organism do these three things
What is live, grow or reproduce
400
Name two pieces of evidence that Wegener used to prove his theory
What is matching geologic features, fossils and types of rocks.
400
Birds and Dinosaurs were the stars of this era
What is the mesozoic
400
The more ____________ a species shares with another, the more closely related they are.
What is DNA
500
Species go extinct when they cannot adapt to this
What is changes in their environment
500
Genetic variation is caused by this
What is random mutations
500
What was the name Wegener gave the giant supercontinent
What is Pangaea
500
Fish and Plants ruled the earth during this era
What is the paleozoic
500
Isolation, Variation and Adaptation are the steps that lead to this
What is a new species
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