1. How do we know if two animals are the same species?
Date:
3/29/17
Topic:
Speciation
Page # ___
Must wear uniforms/IDs!
3/29/17
EBHS
Admit Slip
How do we know if two animals are the same species?

2. (Use your homework notes!)
What defines a species?
How do you know if two animals are different species or the same species?
(Use your homework notes!)

3. Definition of a Species*
Two animals are the same species if they can mate and produce fertile offspring*
This means their BABIES must be have to HAVE BABIES*
What’s it called when two different species mate and produce an offspring?

4. Female lion + male tiger?
Hybrid*
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When two different species produce an offspring. The offspring is sterile (cannot have children).*
Female lion + male tiger?
Liger

6. Other hybrids? Why might humans purposely breed hybrids?
To produce best qualities of both species!
Ex. Horse & Donkey…
Mule

12. How do organisms become different species?
*Speciation = The slow process of one species turning into two different species
Turn into 2 different species = evolution
Mechanisms of Evolution…

13. Mechanisms of Evolution
Mutation
Gene Flow
Genetic Drift
Bottleneck Effect
Founder Effect
Natural Selection
Geographic Isolation
Start as 1 species  become 2 different species
Brief Review
(Will be part of ppt!)

14. Mutation

15. Gene Flow

16. Genetic Drift

17. Bottleneck Effect

18. Founder Effect

19. Natural Selection

20. Geographic Isolation

21. Galapagos Island Video
V0F0sjNSAU
(5:31 – 12:00)

22. Evolution Vocab Powerpoint
Work on Powerpoint
Evolution Vocab Powerpoint