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Unit 1 - Evolution
Canadian Curriculum Grade 11 Biology
22
Biology
11th Grade
09/25/2014

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Term
What is evolution?
Definition
-It is the change in the inherited characteristics of biological populations over successive generations.
-Makes new species
Term
What is a gene?
Definition
-Inherited characteristc
-Specific sequence of DNA that leads to the productivity of a given protein(trait)
Term
What are the 3 main things cells do?
Definition
1. Make energy
2. Make protein
3. Reproduce
Term
what was the cell theory established?
Definition
1838
Term
What is the cell theory?
Definition
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
Term
What happened in 1859?
Definition
Darwin publishes origin
Term
2 different species cannot produce __________?
Definition
viable offspring
Term
What is adaptation?
Definition
it is the evolutionary process whereby an organism becomes better able to live in it's habitat or habitats.
Term
What does immutable mean?
Definition
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.
Term
Who is Georges-Louis Leclerc de Buffon?
Definition
-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
Term
Who is Jean-Baptiste Lamarck?
Definition
-Inheritance of characteristics
-First to acknowledge the impact stress on the environment
-All species change
-Changes passed onto offspring
Term
what is a Homologous feature?
Definition
a structure with common evolutionary origin but serves different functions in modern species
Ex. Bird's wing, human arm, elephant arm.
Term
what is analogous feature?
Definition
structure that does the same thing but does not have the same origin or anatomical structure
Ex. Mosquito's wing, and a birds wing
Term
What is vestigial feature?
Definition
things you can live without
Term
What are the 4 fossil formations?
Definition
1. fossil formation
2. sediment deposition
3. Mineralization
4. Erosion
Term
Why are fossils bad news for immutable?
Definition
-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
Term
what is catastrophism?
Definition
series of global catastrophes that wiped out most species on earth
Term
what is Uniformitarianism?
Definition
the theory that geological changes are slow and gradual and that natural laws and processes have not changed over time
Term
What did Georges curvier do?
Definition
conducted the first detailed studies of fossils
Term
What did charles lyell do?
Definition
revolutionized geology
Term
what did Charles Darwin do?
Definition
-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
Term
What is domestication?
Definition
controlling the reproduction of a species to emphasize a trait and have it consistently expressed.
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