Download 1d Unit 8 Evolution notes Part II-speciation-causes

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Transcript
Evolution notes part II
Speciation and Causes of Evolution

What is a species?

What is speciation?

What leads to the formation of a new species?
o Reproductive barriers:
o What are three types?

Isolation:

Isolation:

Isolation:

What is a reproductive barrier?

What causes evolution (speciation) to occur?
o 1.
o 2.

Types of natural selection
 1.

2.

3.
o 3.
o 4.
o 5. Genetic drift


1.

2.
Rates of Evolution:
o 1.
o 2.