Wright's Organic Architecture: Latent in Hegel's Philosophy on the Arts?
Station - Mrs. Wright's Class Websitemwrightsclassroom.weebly.com/.../21790730/evolution... ·...
Transcript of Station - Mrs. Wright's Class Websitemwrightsclassroom.weebly.com/.../21790730/evolution... ·...
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Station 1
What is Evolution?
What causes Evolution?
A primary example of Evolution, is different bird beak sizes. What caused this to occur?
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Station 2
What is “Survival of the Fittest?”
How is fitness measured?
What is the difference between macroevolution and microevolution?
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Station 3
What is Natural Selection?
What are the 4 principles of Natural Selection? Explain each.
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Station 4
What are the two types of reproduction and purpose?
Which statement belongs to which type or both?
• Most variation of a species
• Production of genetically identical offspring
• Mutations occur
• Genetic variability expressed through gene shuffling, crossing over, mutations, and recombination of DNA
• Best type for stable environment
• Species most likely to survive environmental change
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Station 5
Why are mutations important for a species?
What are the four fields that support Evolution and briefly describe them.
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Station 6
Biochemistry examines similarities in ___________ and ___________ which are two things all organisms have in common.
What is a transitional fossil?
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Station 7
What are homologous structures? Provide an example. Explain what these similarities suggest.
What are vestigial structures? Provide an example. Explain what these structures suggest.
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Station 8
What is a gene pool?
What is a species?
Which type of population would most likely have a wide range of phenotypes and genetic variation? Small or Large Asexual or Sexual Reproduction
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Station 9
What determines if a phenotype is a good or bad trait?
What will happen to the frequency of white bunnies in a snowy environment? Brown bunnies?
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Station 10
Below are the five aspects that influence genetic variability. Explain each.
• Genetic Drift
• Gene Flow
• Non-random Mating
• Mutations
• Natural Selection
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Station 11
What is genetic equilibrium/Hardy-Weinberg Principle? What are the requirements?
What are the steps to form a new species?
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Station 12
Environmental factors affect evolution with several patterns. Explain each.
• Gradualism vs. Punctuated Equilibrium
• Divergent Evolution vs. Convergent Evolution
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Station 13
Environmental factors affect evolution with several patterns. Explain each.
• Coevolution
• Gradual Extinction vs. Mass Extinction
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Station 14
What is the diagram to the right called?
What does it show?
What is the oldest species? Youngest?
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Station 15
Concept Map
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Station 16
Concept Map
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Agenda
Have Study Guide out
Quick Review:
Genetic Variability
Environmental Factors
Cladograms
Review Evolution Round Robin
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Station 1
What is Evolution?
What causes Evolution?
A primary example of Evolution, is different bird beak sizes. What caused this to occur?
Change of a species over time
Environmental changes and variation among the population leads to Natural Selection
Available food
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Station 2
What is “Survival of the Fittest?”
How is fitness measured?
What is the difference between macroevolution and microevolution?
Individuals with beneficial traits that are best adapted to survive will reproduce more often and pass those traits to the next generation
How likely individuals are to survive and how many offspring are produced
Macroevolution- large scale change dealing with multiple populations Microevolution- small scale change dealing with one population
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Station 3
What is Natural Selection?
What are the 4 principles of Natural Selection? Explain each.
Survival of the Fittest; ; Individuals with the best characteristics/phenotype will allow them to survive and reproduce. Those that do not have the favored phenotype will not survive and reproduce successfully.
Overproduction of Offspring- producing more offspring than environment can support leading to competition for available resources Variation- different bird beaks based on food supply Adaptation- species being able to adjust to changes in environment Descent with Modification- species develop different traits from an ancestor based on their environment (wolf, dogs, coyote, fox, etc.)
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Station 4
What are the two types of reproduction and purpose?
Which statement belongs to which type or both?
• Most variation of a species
• Production of genetically identical offspring
• Mutations occur
• Genetic variability expressed through gene shuffling, crossing over, mutations, and recombination of DNA
• Best type for stable environment
• Species most likely to survive environmental change
Asexual Reproduction- Produce genetically identical offspring with least amount of variation Sexual Reproduction- increases genetic variation by producing different
Sexual
Asexual
BOTH!
Asexual
Sexual
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Station 5
Why are mutations important for a species?
What are the four fields that support Evolution and briefly describe them.
Helps develop/introduce new phenotypes to help the species survive and increases genetic variation
Anatomy- examines similarities in homologous structures Biochemistry- compares DNA and proteins Embryology- determines similarities in patterns with embryo development Paleontology- examines the fossil record
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Station 6
Biochemistry examines similarities in ___________ and ___________ which are two things all organisms have in common.
What is a transitional fossil?
Nucleic Acids (DNA/RNA) Proteins/Amino Acids
Intermediate fossil that shows links between two species Example: Archaeopteryx (birds and reptiles)
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Station 7
What are homologous structures? Provide an example. Explain what these similarities suggest.
What are vestigial structures? Provide an example. Explain what these structures suggest.
Structures that are similar in shape but have different functions/jobs Example: human arm, whale fin, bat wing, cat leg Suggests organism have a common ancestor
Organs that no longer have purpose or function. Examples: Humans appendix, third eye-lid, male nipples, sinuses, coccyx Whale and snake hip bones Suggests at one time the species used them but over time they have become unneeded.
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Station 8
What is a gene pool?
What is a species?
Which type of population would most likely have a wide range of phenotypes and genetic variation? Small or Large Asexual or Sexual Reproduction
All available alleles that can be inherited in the next generation by individuals that can interbreed and produce fertile offspring Group of organisms that share similar characteristics and can produce fertile and healthy offspring
Large Sexual Reproduction
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Station 9
What determines if a phenotype is a good or bad trait?
What will happen to the frequency of white bunnies in a snowy environment? Brown bunnies?
Improves or decreases the likelihood that an individual can find resources (food, shelter, water, mate), adapt for survival, and reproduce
White fur phenotype will increase in frequency/number where brown fur phenotype will decrease and eventually be eliminated
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Station 10
Below are the five aspects that influence genetic variability. Explain each.
• Genetic Drift
• Gene Flow
• Non-random Mating
• Mutations
• Natural Selection
Overtime the allele frequency will increase/decrease for specific trait (color, shape, size, etc.)
Movement of INDIVIDUALS into or out of population
Certain traits improve or decrease change of mating (Peacocks)
Change in DNA that result in increased variation
Survival of the Fittest
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Station 11
What is genetic equilibrium/Hardy-Weinberg Principle? What are the requirements?
What are the steps to form a new species?
No change in allele frequency- remains constant Requirements: no mutation, random mating, no genetic drift or gene flow, no Natural Selection
Population of a species becomes isolated/separated (examples: river, earthquake, etc.) and begin to develop different characteristics by adapting to their environment. If they are no longer isolated, the two groups cannot reproduce.
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Station 12
Environmental factors affect evolution with several patterns. Explain each.
• Gradualism vs. Punctuated Equilibrium
• Divergent Evolution vs. Convergent Evolution
Slow change of a species sudden/rapid change within species
A species splits creating two species two species that are not related Cat family, different bird beaks develop similar characteristics (analogous characteristics) Bird wing, bat wing,, butterfly wing
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Station 13
Environmental factors affect evolution with several patterns. Explain each.
• Coevolution
• Gradual Extinction vs. Mass Extinction
Slow elimination of a species sudden/rapid removal species
Two species in close proximity evolving in response to one another. Ex: Predator/Prey, Flowers/Insects
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Station 14
What is the diagram to the right called?
What does it show?
What is the oldest species? Youngest? Oldest- Shark (diverged first) Youngest- Human, Whale (diverged most recently)
Proposed evolutionary history
Phylogenetic Tree
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Station 15
Concept Map
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Station 16
Concept Map
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Now?
Notebooks due tomorrow and DUT
pages 168, 170, 172