1. Natural Selection

2. Genetic Variation
a measure of how much individuals in a population differ genetically
A population that has high genetic variation will have many individuals with different sets of traits.
Sharks: over 400 species
Can you think of any other species?

3. Vocabulary Natural selection Genetic variation adaptation
Selective breeding
Mutation

4. Vocabulary:
Artificial breeding: the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits by choosing which typically animal or plant males or females will sexually reproduce and have offsprings together.
Endangered species: A species at risk of extinction because of human activity.
Natural extinction: the ongoing extinction of individual species due to environmental or ecological factors such as climate change or competitive disadvantage.
Mimicry:the close external resemblance of an animal or plant[or part of one] to another animal, plant,or inanimate object.
Camouflage- to make things blend in with other natural surroundings

5. Adaptation and Evolution

6. What’s Help Animals Survive
Write a brief Report: 5-8 sentences as a group of 3
What’s your animal name?
What’s its adaptations and environmental factors?
What’s interesting about your animal?
Share with class

7. Why are Species (plant and animal) Endangered?
Is the world a safe place for all animals and plants? Why or why not?
What does it mean for a species to be endangered?
What, if anything, do you know about this topic?
What animal or plant species do you know of that are endangered or extinct?
Why do you think species are endangered?
How do you think or feel about this ongoing global problem?
What, if anything, happens when an animal or plant species becomes extinct?
How do you think this situation can be realistically improved?
Why should it be improved?

8. Why are Species (plant and animal) Endangered?
Booming human population growth over the last two centuries
reducing the amount of forest cover
increasing the amount and variety of chemicals released into the atmosphere (pollution)
Climate Change
intensive farming
habitat loss is accounting for almost 75 percent of the extinctions occurring now.
Rate of extinction should be about 5 per year
Now it’s 10,000
99% of current extinction due to Human factors

9. Do Now
Change the following sentence as many times as you can by replacing letter or whole words:
THE CAT IS RED.

10. What are Mutations?
From the song, write down what is a mutation.

11. Mutation creates diversity and variation in species
Change in DNA
“Errors” during DNA replication
GGT becomes GTT
Code for making amino acids and proteins
genotype or phenoytpe
Chromosome or genes
Passed on to offsprings
Causes
Environmental agent (Mutagen)
Radiation, drugs
Spontaneous (Mutagenesis)

12. Homework: Choose 2 words to make “Word Map:” definition, picture, example, write your own sentence; make a Word Cloud

13. Mathematical representations
graph.html

14. Environmental Factors
which traits are favorable and which are unfavorable
choose an environment anywhere in the world; make a list of traits that would help an organism survive in that environment: animals in Antarctica need to be able to stay warm with heavy, thick fur

15. Speciation forming a new species as a result of evolution
when part of a population becomes separated from the rest
each population may evolve with different set of traits- the groups’ adaptations (favorable traits) will differ
if the groups are reunited but cannot interbreed anymore, they have undergone reproductive isolation

16. Extinction describes a species that has died out completely
if environmental conditions change, a species may not be able to survive
List some conditions?

17. Exit Ticket
Are zoos valuable at preserving species?

18. Homework Read p. 312-17 Answer Review Questions #1-6 or
Video search on natural selection:
write a summary of what it was about, what you like or did not like
cite website

19. Mathematical Representation of Evolution

20. Resources http://sciencenetlinks.com/esheets/save-our-animals/