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-It is the change in the inherited characteristics of biological populations over successive generations. -Makes new species |
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-Inherited characteristc -Specific sequence of DNA that leads to the productivity of a given protein(trait) |
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What are the 3 main things cells do? |
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1. Make energy 2. Make protein 3. Reproduce |
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what was the cell theory established? |
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1. cells are basic unit of life 2. all cells come from pre-existing cells (mitosis) 3. every living thing has 1 or more cells |
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2 different species cannot produce __________? |
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it is the evolutionary process whereby an organism becomes better able to live in it's habitat or habitats. |
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What does immutable mean? |
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Unchanging through time. The theory was based on a creationist perspective that some higher power(s) established the world in all it's perfection 6000 years ago. |
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Who is Georges-Louis Leclerc de Buffon? |
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-firm beleiver in immatable but struggled to prove anatomical discoveries -discovered that some animals had useless organs -They had been made in a more perfect form and changed over time |
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Who is Jean-Baptiste Lamarck? |
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-Inheritance of characteristics -First to acknowledge the impact stress on the environment -All species change -Changes passed onto offspring |
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what is a Homologous feature? |
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a structure with common evolutionary origin but serves different functions in modern species Ex. Bird's wing, human arm, elephant arm. |
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what is analogous feature? |
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structure that does the same thing but does not have the same origin or anatomical structure Ex. Mosquito's wing, and a birds wing |
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What is vestigial feature? |
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things you can live without |
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What are the 4 fossil formations? |
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1. fossil formation 2. sediment deposition 3. Mineralization 4. Erosion |
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Why are fossils bad news for immutable? |
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-fossils show species that are not here today -There are no fossils of living organisms -Fossils are buried deep in rocks -There are fish buried high up on mountains |
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series of global catastrophes that wiped out most species on earth |
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what is Uniformitarianism? |
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the theory that geological changes are slow and gradual and that natural laws and processes have not changed over time |
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What did Georges curvier do? |
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conducted the first detailed studies of fossils |
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What did charles lyell do? |
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what did Charles Darwin do? |
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-travelled across the globe on "the beagle" (boat) -Arrived at galapagos islands made many profound observations -he wrote "on the origin of species" when returned to europe |
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controlling the reproduction of a species to emphasize a trait and have it consistently expressed. |
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